吱呀

zhīyā
(onom.) creaking

CEDICT

onomatopoeic

Entry Composition

1 吱 zhī (onom.) creaking or groaning
=2 呀 yā
  1. ah (used to express surprise)
  2. (onom.) creaking
=2 呀 ya (particle equivalent to 啊 after a vowel, expressing surprise or doubt)