1. "The One On The Last Night"
   "The Last One"
2. "The One With Rachel's Going Away Party"
   "The One Where Joey Moves Out"

This was the show's series finale, which aired on May 6, 2004. Watched by more than 52.5 million viewers, it ranks as the fifth most-watched television series finale in U.S. history, behind shows like "M*A*S*H" and "Cheers."

1. "The One Where Monica Gets a Roommate"
   "The One With the Cheap Wedding Dress"
2. "The One with Rachel's Big Kiss"
   "The One with Barry and Mindy's Wedding"

As the first episode of the series, this pilot sets up some essential "Friends" plot points, including the gang's favorite hangout (Central Perk!), Rachel's status as a runaway bride and Ross' enduring crush on Rachel.

1. "The One with All the Kissing"
   "The One With Rachel's Big Kiss"
2. "The One with Rachel's Inadvertent Kiss"
   "The One After Joey and Rachel Kiss"

In this seventh season episode, Rachel's former sorority sister, Melissa Warburton, is played by actress Winona Ryder. She's the recipient of the big kiss that's referenced in the title.

1. "The One With the Routine"
   "The One Where They're Up All Night"
2. "The One With Ross's Thing"
   "The One With the Secret Closet"

The song that Monica and Ross perform their eight-grade dance routine to is called "The Trouble With Boys" by Lithuanian pop singer Loreta. Monica, Ross and Joey are invited to the famous New Year's Eve show by Joey's new roommate, Janine, played by Elle Macpherson.

1. "The One Where They're Going to Party!"
   "The One With the Cake"
2. "The One Where Emma Cries"
   "The One with Ross's Denial"

The cake referenced in this episode title is Emma's first birthday cake, which Rachel has to return to the bakery due to a mix up. Instead of featuring a cute bunny, it's baked in the shape of a penis.

1. "The One After Joey and Rachel Kiss"
   "The One with the Soap Opera Party"
2. "The One With Rachel's Dream"
   "The One with Joey's New Brain"

In this episode, Rachel finally learns that Joey had romantic feelings for her the previous year when she was pregnant with Emma. Meanwhile, Ross get high on maple candy and Monica scores a new job at a fancy restaurant.

1. "The One Where Joey Dates Rachel"
   "The One Where Ross Is Fine"
2. "The One Where Ross Hugs Rachel"
   "The One After Joey and Rachel Kiss"

Ross is pretending to be "fine" in this episode after of finding out about Rachel's romantic relationship with Joey. So was the audience, it turns out — the Rachel and Joey love story was disliked by most fans of the show.

1. "The One Where Nana Dies Twice"
   "The One with the Joke"
2. "The One With the Memorial Service"
   "The One Where Estelle Dies"

In this ninth-season episode, Chandler and Ross engage in a battle of wits by making up stories about each other on their college alumni website. The memorial service referenced in the episode's title refers to the one Chandler lies will be held for Ross as a result of his tragic death in a blimp accident.

1. "The One With Phoebe's Wedding"
   "The One Where They're Going to Party!"
2. "The One With Princess Consuela"
   "The One Where the Stripper Cries"

In this 10th-season episode, Danny DeVito played the stripper hired by Rachel and Monica to spice up Phoebe's bachelorette party. Meanwhile, Joey tanks on a game show, and Chandler and Ross attend their college reunion.

1. "The One With Ross's Denial"
   "The One With the Apothecary Table"
2. "The One Where Phoebe Hates PBS"
   "The One With Unagi"

This is the classic season six episode in which Ross brags about having Unagi, which, he says, is not a piece of sushi but rather a state of total awareness. Phoebe and Rachel prove him wrong when they hide in his apartment and scare the life out of him. "Ahhh! Salmon skin roll," Rachel retorts.

1. "The One With Ross's Thing"
   "The One Where No One's Ready"
2. "The One With Two Parties"
   "The One With All The Haste"

The second episode of season three, this installment has become one of the series' most beloved. It features the classic scene in which Joey dons layers of Chandler's clothes and sarcastically declares, "Could I BE wearing any more clothes?"

1. "The One With Monica and Chandler's Wedding"
   "The One With Rachel's New Dress"
2. "The One With Barry and Mindy's Wedding"
   "The One With the Vows"

This season two finale reunites Rachel with Barry, the fiancé she left at the alter in the pilot episode. It also brings back the character of Janice, Chandler's annoying, on-again-off-again girlfriend, for the first of many times throughout the run of the show.

1. "The One With The Pediatrician"
   "The One With Phoebe's Birthday Dinner"
2. "The One With the Blind Dates"
   "The One Where Ross and Rachel...You Know"

In this season nine episode, comedian Jon Lovitz plays Steve, the undesirable guy Phoebe sets up Rachel with in hopes of getting her back together with Ross. This character originally appeared in season one as the really stoned guy for whom Monica makes a meal.

1. "The One with the Embryos"
   "The One with the Ride-Along"
2. "The One With the Cop"
   "The One With the Ball"

Actor Michael Rapaport guest starred in this season-five episode as Gary, Phoebe's cop boyfriend. His first appearance was in the episode prior to this one, which was called "The One With the Ride-Along."

1. "The One Where Rosita Dies"
   "The One Where Estelle Dies"
2. "The One Where Nana Dies Twice"
   "The One Where Heckles Dies"

No one actually dies in this episode — Rosita is the name of Joey's cherished chair. And the suicidal office worker that Phoebe tries to help was played by Jason Alexander of "Seinfeld" fame.

1. "The One with Rachel's Assistant"
   "The One With the Pediatrician"
2. "The One with the Male Nanny"
   "The One Where Rachel Goes Back to Work"

Gavin Mitchell, the handsome temp who subs for Rachel while she is on maternity leave, is played by actor Dermot Mulroney. Mulroney is best known for starring in popular rom-coms such as "My Best Friend's Wedding" and "The Wedding Date."

1. "The One Where Chandler Can't Remember Which Sister"
   "The One Where Chandler Crosses the Line"
2. "The One With the 'Cuffs"
   "The One with Chandler's Work Laugh"

Chandler gets himself into a risky situation in this episode when he's handcuffed to an office chair by his current flame, Joanna, who also happens to be Rachel's boss. Did we mention he's half-naked? Of course, hilarity ensues.

1. "The One Where Ross Moves In"
   "The One With the Cop"
2. "The One With the Ride-Along"
   "The One with the Mugging"

Our synopsis for this episode would simply be "PIVOT!" While Phoebe meets a cop and Joey thinks he loves Monica, Rachel and Chandler help Ross carry a new couch up the stairs to his apartment, with hilarious results.

1. "The One With Phoebe's Uterus"
   "The One With The Birth Mother"
2. "The One Hundredth"
   "The One With All The Haste"

The clever title references the fact that this was the 100th episode of the series, which is a milestone number for sitcoms. It's also the episode in which Phoebe gives birth to triplets, one of which is named after Chandler (baby girl Chandler!).

1. "The One with Rachel's Inadvertent Kiss"
   "The One Where They All Turn Thirty"
2. "The One Where They're Up All Night"
   "The One with Rachel's Assistant"

This episode from the seventh season begins with the gang hanging out on their building's roof in hopes of seeing a comet. When nothing happens, they all give up and leave — except Joey and Ross, who are left stranded up there for hours.

1. "The One With Joey's Bag"
   "The One with Joey's New Brain"
2. "The One With Joey's Big Break"
   "The One with Joey's Interview"

In this episode, the 13th of season five, Joey discovers the joys of accessorizing with a fashionable unisex purse. At the same time, Phoebe meets her dad, Frank Buffay Sr., played by character actor Bob Balaban.

1. "The One With Joey's Dirty Day"
   "The One With Joey's New Girlfriend"
2. "The One With Rachel's Crush"
   "The One With The Fake Party"

Joshua, the customer Rachel has a crush on in this episode, is played by actor Tate Donovan, who dated Jennifer Aniston in real life. He guest starred in five episodes during the show's fourth season.

1. "The One with the Race Car Bed"
   "The One Where Monica and Richard Are Just Friends"
2. "The One With the Ick Factor"
   "The One with Monica's Thunder"

This was the 22nd episode of the show's first season. The ickiness referenced in the title refers to Monica's feelings after realizing that her boyfriend Ethan, whom she believe was in his 20s, is only 17 years old.

1. "The One Where Ross Moves In"
   "The One with the Apothecary Table"
2. "The One Where Joey Loses His Insurance"
   "The One on the Last Night"

During this season 6 episode, the nonsensical game that Chandler invents as a ploy to lend Joey money is called "Cups." At the same time, Rachel and Monica struggle with ending their relationship as roommates.

1. "The One with Ross's Denial"
   "The One with the Yeti"
2. "The One with Rachel's Assistant"
   "The One With the Screamer"

Ben Stiller guest stars as "the screamer" in this episode, Rachel's outburst-prone date. Stiller went on to star with Jennifer Aniston in the 2004 comedy film, "Along Came Polly."

1. "The One with Rachel's Inadvertent Kiss"
   "The One With Rachel's Crush"
2. "The One With Rachel's New Dress"
   "The One with the Fake Party"

Fun fact: John Bennett Perry, the actor who plays Joshua's father in this episode, is the real-life father of Matthew Perry. He has starred in numerous TV shows, including "Mannix," "Little House on the Prairie," "The Love Boat" and "7th Heaven."

1. "The One With the Soap Opera Party"
   "The One with Ross's Grant"
2. "The One With the Lottery"
   "The One with Ross's New Girlfriend"

Played by Aisha Tyler, Charlie appears in nine episodes of the show's ninth season, first as Joey's girlfriend, then as Ross's. In fact, she's the last relationship Ross has in the show before reuniting with Rachel in the series finale.

1. "The One with All the Jealousy"
   "The One with All the Haste"
2. "The One with the Kips"
   "The One With Five Steaks and an Eggplant"

While this episode doesn't explain how the friends were able to afford such nice, big apartments in New York City, it does acknowledge the fact that Manhattan living can be very costly for a group of twentysomethings.

1. “The One With the Late Thanksgiving”
   "The One With the Rumor"
2. "The One With All the Thanksgivings"
   "The One Where Ross Got High"

Brad Pitt, Jennifer Aniston's husband at the time, guest starred in this popular episode from the show's eighth season. The rumor noted in the title is a piece of misinformation about Rachel spread by Pitt's character, Will, back in high school.

1. "The One Where Dr. Ramoray Dies"
   "The One Where Joey Moves Out"
2. "The One After the Superbowl"
   "The One with the Soap Opera Party"

This extra-long episode aired on January 28, 1996, immediately after Super Bowl XXX. It featurs a slew of celebrity guest stars, including Brooke Shields, Chris Isaak, Julia Roberts and Jean-Claude Van Damme.

1. "The One With Rachel's Sister"
   "The One With Rachel's Other Sister"
2. "The One Where Rachel's Sister Baby-Sits"
   "The One With The Inappropriate Sister"

In this sixth-season episode, Rachel's sister Jill is played by Reese Witherspoon. Rachel's other sister, Amy, who is played by Christina Applegate, visits the gang during seasons nine and ten.

1. "The One with the Embryos"
   "The One with the Free Porn"
2. "The One Where Ross Moves In"
   "The One With All the Haste"

While chronicling the fallout from the friends' epic apartment-swapping bet, this episode establishes Ross' hasty devotion to his girlfriend Emily, who he's been dating for just six weeks.

1. "The One with the Red Sweater"
   "The One With the Stain"
2. "The One Where Rachel Tells..."
   "The One With Monica's Boots"

In this episode from the eighth season, Chandler hires a cleaning lady, much to Monica's dismay. At the same time, Phoebe wins the affections of Eric, played by Sean Penn in a rare TV performance.

1. "The One With Phoebe's Wedding"
   "The One With Princess Consuela"
2. "The One With the Home Study"
   "The One Where Phoebe Hates PBS"

While Phoebe and Mike's wedding is an important plot point for this 10th-season episode, its title refers to Monica and Chandler's attempts to impress a social worker in their new quest to adopt a child.

1. "The One with the Morning After"
   "The One Where Ross and Rachel Take a Break"
2. "The One With the Kips
   "The One with the Girl from Poughkeepsie"

In addition to Joey's revelation about Monica and Chandler's relationship, this episode also focuses on Ross and Rachel's struggle to remain friends in the wake of his wrong-name wedding disaster with Emily.