ぎりり

adverb taking the 'to' particle, adverb

gnashingly; with a grinding sound; with a creak

Mimetic adverb describing a sharp, grating sound, often from teeth grinding or metal straining. Used with と or as an adverb.

• 悔くやしさに歯はをぎりりと噛かみしめた。

  I gritted my teeth with a grinding sound out of frustration.

• 古ふるい扉とびらがぎりりと音おとを立たてて開ひらいた。

  The old door opened with a creaking sound.