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Definitions

fusion

[fyoo-zhuhn] / ˈfyu ʒən /
NOUN
melding; mixture
Synonyms
STRONGEST
amalgam blend blending synthesis
STRONG
admixture alloy amalgamation coalescence coalition commixture compound federation heating integration intermixture junction liquefaction melting merger merging soldering unification union uniting welding
WEAK
coadunation commingling immixture liquification smelting
Antonyms
STRONGEST
division separation
WEAK
disconnection

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The EU aims to develop the first commercial fusion power plant online.

From BBC • Apr. 3, 2026

Nuclear fusion research is also benefiting from EU attention, though.

From BBC • Apr. 3, 2026

Future iterations would add Boron-11 here to begin fusion.

From The Wall Street Journal • Mar. 28, 2026

“But at the end of the day, they’ve just now made essentially one of the biggest investments into fusion ever.”

From The Wall Street Journal • Mar. 28, 2026

I have a feeling it’s not that different from fusion friendship.

From "A Place at the Table" by Saadia Faruqi and Laura Shovan

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.