fleet up
C1 formal inseparable intransitive
In simple words
When a soldier or sailor gets a higher job title in the navy or military.
Literal meaning: To move up within a fleet — transparent within its specialized context.
Meanings
1 C1 formal
To be promoted to a senior position within a naval fleet, typically when a vacancy arises.
"The commodore was expected to fleet up to rear admiral following the retirement of the incumbent."
Grammar: inseparable
2 C1
idiomatic
formal
More broadly, to advance through the ranks of a hierarchical organization.
"She had fleeted up quickly through the corporate structure, reaching senior management within five years."
Grammar: inseparable
Usage notes
Highly specialized military and naval jargon. Used primarily in official contexts, military journalism, and defense reporting. Rarely encountered outside these domains.
Commonly used with
officer admiral captain commander rank position
Forms
Base
fleet up
I/you/we/they
3rd person
fleets up
he/she/it
Past simple
fleeted up
yesterday
Past participle
fleeted up
have + pp
-ing form
fleeting up
continuous
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