a line or pattern in the shape of a V V 形线条；V 形图案 a piece of cloth in the shape of a V that soldiers and police officers wear on their uniforms to show their rank （军人、警察制服上表示军衔或警衔的）V 形标志
Word Originlate Middle English (in heraldic use): from Old French, based on Latin caper ‘goat’; compare with Latin capreoli (diminutive of caper) used to mean ‘pair of rafters’.