loud

Compared meaning: making a very loud sound (adjective).

比较义项：形容声音很大、震耳（形容词）。

• loud 本词

  The general, neutral word for making a lot of noise; can describe any sound at any strength and is the everyday choice when nothing extreme is implied.

  最普通、中性的词，泛指发出很大的声音；可以形容任何强度的声音，是日常表达中不带夸张语气的首选词。

  He has such a loud voice that people three rooms away can hear him.

  他的嗓门那么大，隔三个房间都能听到他说话。

• deafening

  Stronger than loud: describes noise so intense it almost hurts or overwhelms the ears, often for sudden, extreme, or overwhelming sounds.

  程度比 loud 更强，形容声音大到几乎令人耳朵疼痛或难以承受，常用于突然、极端或让人不知所措的声音。

  The alarm was so deafening that I couldn't think straight for a minute.

  警报声震耳欲聋，我有一分钟都无法好好思考。

• thunderous

  Describes a loud, deep, rumbling sound like thunder; typically used for applause, cheering, or a booming voice rather than ordinary noise.

  形容像雷声一样低沉轰鸣的巨大声响，通常用来形容掌声、欢呼声或洪亮的嗓音，而不是普通的噪音。

  The crowd erupted into thunderous applause when the home team scored the winning goal.

  主队打进制胜一球时，观众爆发出雷鸣般的掌声。

All three describe loud sound. Loud is the general, neutral word for any noise. Deafening is stronger, describing noise so intense it almost hurts the ears. Thunderous describes a loud, deep, rumbling sound like thunder, typically for applause or a booming voice.

这三个词都可以形容声音很大，但语气强弱和用法不同：loud 最普通、程度中性；deafening 强调声音大到令人难以忍受，几乎要震聋耳朵；thunderous 强调像雷声一样低沉轰鸣，常用于掌声、欢呼声等场合。这里不比较 loud 形容颜色鲜艳刺眼（如 a loud shirt）或 thunderous 形容表情愤怒（如 a thunderous look）等其他意义。

Compared meaning: using the voice to make sound (adverb).

比较义项：大声地／出声地（副词）。

• loud 本词

  Loud describes how much noise something makes — high volume, the opposite of quiet or soft — and is an informal adverb often used with verbs like talk, play or shout.

  loud 表示声音的音量大，即“响”，与“轻”“安静”相对；是较口语化的用法，常与 talk、play、shout 等动词连用。

  Please don't play your music so loud this late at night.

  这么晚了，请不要把音乐放得那么大声。

• aloud

  Aloud means using your voice to speak rather than staying silent or thinking to yourself; it has nothing to do with volume and is mainly used with verbs like read, think or wonder.

  aloud 表示用嗓音说出来，而不是保持沉默或只在心里想；它与音量大小无关，主要与 read、think、wonder 等动词连用。

  She likes to read her poems aloud before showing them to anyone.

  她喜欢先把自己的诗大声读出来，然后再给别人看。

Loud and aloud both relate to sound, but differ. Loud means high volume, used with verbs like talk or shout. Aloud means using your voice instead of staying silent, with no link to volume, used with verbs like read or think.

这两个词都可译为“大声地”，但侧重点不同：loud 强调声音的音量大小，与“轻声”相对，是较随意、口语化的说法；aloud 强调“用嗓音说出来”而非默不作声或只在心里想，和音量大小无关。