doubly

American  

[duhb-lee] / ˈdʌb li /

adverb

1. to a double measure or degree.

   to be doubly cautious.

2. in a double manner.

3. Obsolete. with duplicity.

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doubly British  

/ ˈdʌblɪ /

adverb

1. to or in a double degree, quantity, or measure

   doubly careful

2. in two ways

   doubly wrong

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Etymology

Origin of doubly

Middle English word dating back to 1350–1400; see origin at double, -ly

Explanation

The adverb doubly means "twice as" or "double." If your new French class is doubly hard as last year's class, it's two times harder. Sometimes people use doubly for general emphasis, to mean "very" or "especially." Your boss might say, "Today's doubly important because the owner of the company will be observing our work." Or you might feel doubly hungry for breakfast after a morning swim. Doubly comes from the adjective double, with its Latin root of duplus, "twofold or twice as much," from duo, "two."

Example Sentences

See Examples For:

doubly

The challenge is doubly obvious from the Hugging Face incident.

From The Wall Street Journal ● Sep. 15, 2026

As its name implies, it is mainly active at night – making it doubly difficult for people to spot.

From BBC ● Jul. 24, 2026

All good points, but what’s good for high earners is doubly true for lower earners.

From MarketWatch ● Jun. 26, 2026

Ali was doubly surprised because the mailers went out to voters just a few weeks after Waters attended an unveiling ceremony for the new Compton High School campus.

From Los Angeles Times ● May 29, 2026

So the whole thing was doubly slimy really, but there you go.

From "Anthem of a Reluctant Prophet" by Joanne Proulx