全員がその単語を暗記しなければならない。

all members (unanimity); all hands; the whole crew; everyone; everybody

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

that (something or someone distant from the speaker, close to the listener; actions of the listener, or ideas expressed or understood by the listener); the; um...; er...; uh...

word; vocabulary; (usually) single-character word

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

memorization; memorisation; learning by heart