呼吸 (こきゅう) — breathing, respiration

呼こ吸きゅう breathing

频率 #2671 Frequency rank among common Japanese words. Lower number = more common. 学年 6 日本学校教授该汉字的学年等级。1年级为小学一年级。 2 characters 漢語 kango 漢語 (kango) — Sino-Japanese compound: all kanji use on'yomi (Chinese-derived) readings.

kokyuu