せいく【成句】
〔慣用句〕a set [fixed] phrase, an idiomatic phrase [expression];〔ことわざ〕a (common) saying, a proverb
せいくうけん【制空権】
command [control] of the air制空権を持つ[握る]command the air/have (the) command of the air
せいくらべ【背比べ】
二人並んで背比べをしたThe two of us stood 「side by side [back to back] 「to see which was the taller [to comp...