American Dictionary

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Definition substantially in American English

substantially adverb

adverb
/səbˈstænʃ(ə)li/
1

by a large amount or degree

Example

We have substantially increased the number of programs.

Example

The city has grown substantially.

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2

very strongly made or built

Example

a substantially built brick house

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3

in the most important or basic way

Example

The two women hold substantially equivalent positions in the two companies.

Synonyms and related words
Definition substantially in American English