Godan verb with 'ru' ending, Intransitive verbto become defiant; to fight back; to turn upon; to take the offensive

Noun(hinged) door

Noununsealed mail

Nounsplit and dried saurel

Nouncommon teacher

Nounaperture

Nounwarp (on the page or cover of a book, making it splay open)

Nounfolding trestle legs · hiraki-ashi; lateral foot displacement (kendo)

Godan verb with 'su' ending, Transitive verbto reopen (e.g. a file, window); to open again