(1)a sentimental affection; "she had a soft spot for her youngest son"
(2)感傷的な愛情
(3)any membranous gap between the bones of the cranium in an infant or fetus
(4)幼児または胎児の頭蓋骨にある膜性の隙間
(5)a place of especial vulnerability
(6)特に脆弱な場所