English · Word Candidate

fusion

/ˈfjuː.ʒən/

Proposed by a contributor, not yet supported by evidence.

Also seen as: fusions · fusioning · fusioned

Sense 1

Meaning · English

The act of merging separate things, or the result thereof.

Noun

Examples

These tasks may be summarised as comprising the maintenance and improvement of railway services and facilities during a transitional period; the reorganising of systems of management and technical practices, so as to secure maximum efficiency and economy from the fusion of four major railway systems

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 2

Meaning · English

The act of merging separate things, or the result thereof. — A nuclear reaction in which nuclei combine to form more massive nuclei with the concomitant release of energy.

Noun

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 3

Meaning · English

To combine; to fuse.

Verb

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Common questions

What does “fusion” mean?

The act of merging separate things, or the result thereof.

Is “fusion” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.