预热 (yù rè) — preheat | TongTong Chinese Dictionary

Definition

Used in cooking, machinery, and events for warming up in advance — 'preheat' an oven or engine, or a host 'warming up' an audience before it starts.

verb

preheat

，预热。
Kǎo dàn gāo zhī qián, xiān bǎ kǎo xiāng yù rè shí fēn zhōng.
Before baking the cake, preheat the oven for ten minutes.
预热。
Dōng tiān kāi chē qián zuì hǎo ràng fā dòng jī yù rè yí xià.
In winter, it's best to let the engine preheat before driving.
，预热。
Huó dòng kāi shǐ qián, zhǔ chí rén xiān zuò le yù rè.
Before the event started, the host did a warm-up (preheating the audience).

Compound word

构词法gòucífǎ

偏正piānzhèngModifier + head

The first part narrows down the second: it says what kind of thing the head is.

预yùin advance

预 gives 'in advance' and 热 means to heat, so it describes warming something before use.

Characters in this word

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 預; 预 is its simplified writing.

予頁預

Meaning part形符xíngfú

頁頁yè

Sound part声符shēngfú

予

Same sound today

The traditional form 預 combines 予 for the sound and 頁 for the meaning; the simplified 预 is a later shorthand.

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 熱; 热 is its simplified writing.

埶灬熱

Meaning part形符xíngfú

灬Written in full as火huǒfire

Sound part声符shēngfú

埶

埶yì熱rè

The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

The traditional form 熱 pairs 埶 with 火 (written as 灬) to show heat, while 埶 gives a sound.

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