freelance has definitions from the fields of work,military
1
[ adjective ] (work) working for yourself

Synonyms

self-employed

Used in print

(R. F. Shaw, "The `Private Eye`"...)

As a free-lance investigator , the fictional detective is responsible to no one but himself and his client .

Related terms

salaried employed

2
[ adjective ] (military) used of soldiers hired by a foreign army

Synonyms

mercenary

Related terms

paid

3
[ noun ] (work) a writer or artist who sells services to different employers without a long-term contract with any of them

Related terms

worker

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