耳にする: to hear

耳鳴り: tinnitus

The hiragana syllable あ (a). Its equivalent in katakana is ア (a). It is the first syllable in the gojūon order; its position is あ行あ段 (a-gyō a-dan, “row a, section a”).

expresses surprise: Ah! Oh! / used to get someone's attention / used as a response to someone's call

(obsolete) foot

(obsolete) ridge between rice fields; ridge between groves

(Classical Japanese) to be, to exist

Ah! Oh!

(slang) oh no; oopsy

海松: a type of seaweed / 水松: a type of seaweed