開かい口こう
Meanings
Noun
Verb (する, intransitive)
1. opening; aperture (e.g. camera)
2. opening one's mouth; beginning to speak
Pre-noun adjective
3. open; broad
Kanji used
open
mouth
Pitch accent
か
いこう
Composed of
open; beginning
mouth; speech; counter for people or implements
Used in vocabulary (8 in total)
at the very beginning of one's speech; immediately upon opening one's mouth (to speak); before anything else; first of all