run into, hit, strike

see you later (said by a person leaving, a stock phrase required by the Japanese etiquette, lit.: (after) going, I will come back)

(literally) know the other side and yourself, a hundred battles will not be perilous

(archaic, honorific) father (used in pre-Meiji samurai families)

one's superior or superiors, one's betters, one's elder or elders

(informal) to have "won" a match on a psychological or personal level despite losing to all appearances

theoretical knowledge without practical experience; Literally, “swimming lessons on a tatami floor”

(linear algebra) upper triangular matrix

above, high, up