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In music, especially rock, jazz, and blues, a riff is a short pattern of notes, often played on guitar, that repeats through a song and gives it its main hook — you can often recognize a famous song just from its riff. From this musical sense, English also uses 'riff' more loosely for any short, creative repeated idea — a comedian can 'riff on' a topic, meaning improvise jokes around it without a fixed script, building idea after idea off the last one. This looser sense ('riff on something') is very common in casual, modern talk about comedy, writing, or conversation.
（音樂）重複的樂句、招牌樂段；（口語，riff on...）即興發揮、圍繞一個主題延伸創作
組成This is probably a shortened form of 'refrain' (the repeated part of a song), used by early jazz musicians.
原始詞典資料10 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
riffnoun詞源 1/ɹɪf/
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A repeated melody line in a song, usually instrumental but sometimes vocal.
- Listen to one of the greatest guitar riffs of all time!
- Jimi Hendrix's Voodoo Child has been named the greatest guitar riff of all time, 41 years after it was recorded, in a poll by website Music Radar.
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A clever or witty remark.
- Pope Francis delivers off-the-cuff riff on family life
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A variation on something.
- Both the Orbit and the Pinnacle are riffs on an idea sketched out in 1917 by Vladimir Tatlin for a monument to international communism.
- Grok’s companions are a riff on the idea of AI assistants or agents, which some people use for friendship or romance in place of or in addition to human partners.
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A spoof.
- The creative team has experience with spoofing: Both [Paul] Rudd and [Amy] Poehler had parts in [David] Wain’s Wet Hot American Summer, a hysterically irreverent riff on ’80s summer-camp comedies.
riffverb詞源 1/ɹɪf/
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To improvise in the performance or practice of an art, especially by expanding on or making novel use of traditional themes.
- She riffed on the Olympic judges, the bobsled team, then ad-libbed with a woman drinking a martini at the front table.
- They were great architects deeply enmeshed in an urban chain of innovation; Wright riffed on Sullivan's idea of form following function, and Sullivan riffed on Jenney, and Jenney relied on the fireproofing innovations of Peter B. Wight.
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To riffle.
- He reached into his jacket pocket and pulled out a wellworn deck of cards. He hated Saturday duty. He cut the deck and riffed the two halves together.
- He was gracious enough to thank her, and briefly riffed through the pages before putting it in his briefcase.
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To tell jokes over a movie or similar performance.
- Most MSTers confine their "riffing" to original fan fiction rather than scripts from corporate-owned entertainment properties, which renders such twice-removed MSTing somewhat toothless: the cannibalizing parody of a pastiche.
- A bad sci-fi movie is often ludicrous and silly and ripe for riffing. A bad comedy is usually just dull.
riffnoun詞源 2/ɹɪf/
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archaicanatomymedicinesciencesThe belly; the bowels.
這個拼法也被記錄為下列字的變化形：
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。