doubly

/ˈdʌbli/ (bre, ipa) · [dˈʌbli] /ˈdʌbli/ (ame, ipa) · [dˈʌbli] /ˈdə-b(ə-)lē How to pronounce doubly (audio)/ (ame, mw)

doubly — adverb

1. to a level that is about twice as strong, or simply much stronger than usual

1.副詞B2
釋義

to a level that is about twice as strong, or simply much stronger than usual

例句

After the power cut, Hamza felt doubly grateful for the backup lamp.

doubly + adjective to intensify a feeling

Sana was doubly careful while carrying soup across the crowded kitchen.

同義詞
  • twice as

    used for direct numerical comparison, while 'doubly' is more common before adjectives

  • especially

    adds emphasis but does not clearly suggest a twofold increase

文法句型

be/feel/look + doubly + adjective

doubly + past participle

doubly + adjective in formal emphasis

用法筆記

Most often used before adjectives or participles in fairly formal English. Use this sense when 'doubly' simply makes the quality stronger; if the sentence names two separate reasons or functions, sense 2 fits better.

常見錯誤

❌The box is doubly bigger than mine.
✅The box is twice as big as mine.
💡Use 'twice as + adjective + as' for exact size comparisons; 'doubly' usually strengthens an adjective instead.

2. with two separate benefits, effects, or causes involved at the same time

2.副詞C1
釋義

with two separate benefits, effects, or causes involved at the same time

例句

The guidebook is doubly useful because it has maps and simple local phrases.

doubly + adjective + because-clause for two reasons

For Joon, the job was doubly attractive because it paid well and matched class hours.

同義詞
  • in two ways

    states the dual function plainly, without the more formal tone of 'doubly'

  • for two reasons

    focuses on two causes, while 'doubly' can also describe two benefits or effects

文法句型

be + doubly + adjective + because-clause

find + noun + doubly + adjective

doubly + adjective + by naming two benefits or causes

用法筆記

This sense usually needs the sentence to show the two reasons, uses, or effects, often with a because-clause or a pair of details after the adjective. Use sense 1 instead when you only mean a stronger degree.

常見錯誤

❌The guidebook is doubly useful because it has maps.
✅The guidebook is useful because it has maps.
💡Use 'doubly' only when there are two reasons or two uses, not just one.