noun, takes genitive case の, adjectival noun or quasi-adjective

  1. being used to ..., getting used to ..., being accustomed to, being conditioned to, be familiar with.

Variations

Pronunciation Kanji Kana Is Common
 
 
 
慣れっこ なれっこ
 
 
 
馴れっこ なれっこ

Contained Kanji Breakdown

accustomed, get used to, become experienced
な.れる カン (5th, N3)
heart, standing heart radical variant (no. 61)
シン こころ
pierce, 8 1/3lbs, penetrate
つらぬ.く カン ぬき (8th, N1)
do not, must not, be not
ブ ム はは (Kentei 1)
shellfish
かい バイ (1st, N2)
eye, class, look
め モク ボク (1st, N4)
eight, eight radical (no. 12)
ハチ や はっ (1st, N5)