Elongated form of よく (yoku).

ace up one's sleeve

to do something in preparation for something else / to do something and leave it in a certain state

at; in / on; upon / by; beside / at the time of

a birthday

regular day off (e.g. closed every Monday)

The hiragana syllable び (bi). Its equivalent in katakana is ビ (bi).

美: beautiful / 微: tiny

尾: tail / 弥: extending / 眉: eyebrows / 美: beautiful / 備: preparation / 媚: obsequious / 微: tiny / 鼻: nose / 靡: to flutter, to wave, to be swayed by

尾: fish, shrimp