caption something to write a caption for a picture, photograph, etc.给（图片、照片等）加说明文字- The cartoon was captioned ‘The English abroad’.该漫画的标题是“海外英语”。
Word Originlate Middle English (in the sense ‘seizing, capture’): from Latin captio(n-), from capere ‘take, seize’. Early senses ‘arrest’ and ‘warrant for arrest’ gave rise to ‘statement of where, when, and by whose authority a warrant was issued’ (late 17th cent.): this was usually attached to a legal document, hence the sense ‘heading or accompanying wording’ (late 18th cent.).