master out
C1 formal inseparable intransitive
In simple words
Leave the army or military because your time is done and you are officially let go.
Meanings
1 C1 formal
To be officially discharged from military service at the end of one's term or duty.
"After completing his four-year contract, he was mastered out with full honors."
Grammar: inseparable
Usage notes
This is a relatively rare and somewhat non-standard variant of 'muster out.' Primarily encountered in American military contexts. Some speakers use it interchangeably with 'muster out,' though 'muster out' is more widely recognized. Usage is highly specialized.
Commonly used with
military service army honorably forces corps
Forms
Base
master out
I/you/we/they
3rd person
masters out
he/she/it
Past simple
mastered out
yesterday
Past participle
mastered out
have + pp
-ing form
mastering out
continuous
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Synonyms
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