Season 8, Episode 5: The One With Rachel's Date. Joey and Monica introduced objects to Rachel and Phoebe, respectively.

exhume [ɪɡˈzuːm]
vt. Excavation; excavation
Joey brought Rachel to the set to watch him shoot the scene, and the plot was very gripping.
incompetent [ɪnˈkɑːmpɪtənt]
adj. Incompetent, incompetent, incompetent
Monica introduced tim to his employees to Phoebe. But because Tim can't work well, he must be fired.
simp [sɪmp]
n. Lick the dog; fool, fool
Phoebe thought Tim was fine at first, but soon got tired of trying to get rid of him.
mundane [mʌnˈdeɪn]
adj. Mundane, ordinary; worldly, cosmic
Joey introduced actor colleague Kash to Rachel. Ross knew Rachel was going on a date and started awkward again.
curve [kɜːrv]
n. Curves, arcs; turns, curves; chart curves; curve balls; curves (of the woman's body).
Monica finally relented and left Tim behind.
sputtery [ˈspʌtəri]
adj. Stuttering
Rachel confessed on a date with Kash that she was pregnant, which turned out to be a bit difficult for the other party to accept.