violin /ˌvaɪ.əˈlɪn/noun 3verb 1forms 3phrases 1 noun3 •a small musical instrument held against the shoulder, with four strings that are played with a bowWhen I play it like this, it's a fiddle; when I play it like this, it's a violin. •(nonstandard) Any instrument of the violin family, always inclusive of violins, violas and cellos, and sometimes further including the double bass.The string quartet, one of the most popular groupings in chamber music, is composed entirely of violins: two violins proper, one viola, and one cello. •A violinist in an orchestra or group.The violins are seated with sufficient elbow room.She is first violin in the London Symphony Orchestra. verb1 •To play on, or as if on, a violin. formsviolined · violining · violins Phrases with violin play someone like a violinTo control or manipulate someone, especially by playing on their emotions.