合わせて６００題はきつい。

to match (rhythm, speed, etc.); to join together; to unite; to combine; to add up; to face; to be opposite (someone); to compare; to check with; to cause to meet (e.g. an unpleasant fate); to place together; to connect; to overlap; to mix; to combine; to put blade to blade; to fight

six

circle (sometimes used for zero); 'correct' (when marking); symbol used as a placeholder (either because a number of other words could be used in that position, or because of censorship); period; full stop; maru mark; semivoiced sound; p-sound

title; subject; theme; topic; problem (on a test); question; counter for questions (on a test)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

intense; severe; hard; determined; forceful; formidable; strong; tight; close