to mark off, to demarcate, to delimit / 句切る: to punctuate; to put an end to (e.g. a sentence); to insert pauses or breaks (e.g. when reading aloud)

Western comma

(grammar) a sentence / writing / an essay or composition / a writing style

a male given name

to use / to employ / to make use of, to apply / to spend

(elementary mathematics) word problem

to use one's head

use one thing for many purposes / work someone hard