Codenames: Duet

No — a clue must be one word and one number, and you may say nothing else when giving it; multi-word names or phrases break that rule unless players agree to relax it as a house rule (pages 4, 10).

No — you may not say any visible word or any form of a visible word, nor parts of a compound that appear on the table (e.g., "rain" for RAINBOW is invalid) (pages 4, 10).

The guesser may make additional guesses as long as each guess is correct (there is no fixed upper limit), but a wrong guess ends the turn immediately; the guesser may also stop after one or more correct guesses and take a timer token to end the turn (pages 4–5).

Touching an assassin (a black word on the giver's key) ends the game immediately and you lose; touching a bystander (tan) ends the turn and you mark it with a timer token (arrowed to show who guessed), which may have further effects later (pages 4–5, 7).

The number of timer tokens in the time bank equals the number of turns you have; each turn consumes a token (or tokens when penalized), and when you use your last token you play a sudden-death turn with no more clues allowed; if a turn would require more tokens than remain you lose immediately (pages 5, 9).

No — clues must be limited to the single spoken word and number, and players must not reveal information about their side of the key card, advise when to stop, or tell how many words are left unless all of the words the speaker sees as green have already been covered (pages 4, 7).