Shirabe
開襟
English jmdict
1
noun (common) (futsuumeishi) unbuttoning a collar
2
noun (common) (futsuumeishi) opening up (one's heart)
3
noun (common) (futsuumeishi) abbreviation open-necked shirt
See also: 開襟シャツ (かいきんシャツ)
Other forms 開衿 【かいきん】