A caption is the words that sit with a picture to tell you what you are looking at. In a book or newspaper it is usually a short line under the photo — or sometimes above it — saying who is in it, where, and what is happening.

A caption is the words that sit with a picture to tell you what you are looking at caption是跟圖片放在一起、告訴你這是在看什麼的文字 In a book or newspaper在書或報紙裡 it is usually a short line under the photo — or sometimes above it它通常是照片下面（有時是上面）的一小行字 saying who is in it, where, and what is happening說明照片裡是誰、在哪裡、發生了什麼事

On a television screen it can also mean the words that explain the picture, a name, or what is going on.

On a television screen在電視畫面上 it can also mean the words that explain the picture, a name, or what is going on它也可以指說明畫面的文字、名字，或正在發生的事

Though actually, everyday talk splits here. For a photo in a magazine, everyone says caption. For words at the bottom of a TV programme, American English often says captions (or closed captions, for people who cannot hear well); British English more often says subtitles. That is why one English word covers what Taiwanese students already split into 圖說 and 字幕.

Though actually不過事實上 everyday talk splits here日常用語在這裡就分開了 For a photo in a magazine對雜誌裡的照片來說 everyone says caption大家都說caption For words at the bottom of a TV programme但對電視節目下方的文字來說 American English often says captions (or closed captions, for people who cannot hear well)美式英語常說captions（或給聽障人士看的closed captions） British English more often says subtitles英式英語則更常說subtitles That is why one English word covers what Taiwanese students already split into 圖說 and 字幕這也是為什麼一個英文字，就涵蓋了台灣學生早就分開的「圖說」和「字幕」

As a verb, to caption a photo is to write those words for it. It is a normal, slightly grown-up word: journalists and designers use it all the time.

As a verb作為動詞 to caption a photo is to write those words for it caption a photo就是替照片寫上那些說明文字 It is a normal, slightly grown-up word這是一個普通、但語氣稍微成熟一點的字 journalists and designers use it all the time記者和設計師常常在用