third base
US /ˈθɜːrd ˌbeɪs/
UK /ˈθɜːrd ˌbeɪs/

1.
terceira base
the base in baseball that a runner must reach after second base and before scoring a run
:
•
The runner slid safely into third base.
O corredor deslizou com segurança para a terceira base.
•
He hit a double and advanced to third base on an error.
Ele acertou uma dupla e avançou para a terceira base em um erro.
2.
terceira base (gíria)
(slang) the third stage of sexual intimacy, typically involving oral sex or manual stimulation, but not intercourse
:
•
They reached third base on their second date.
Eles chegaram à terceira base no segundo encontro.
•
He was hoping to get to third base, but she wasn't ready.
Ele esperava chegar à terceira base, mas ela não estava pronta.