"withdrawer" in the noun sense
1. withdrawer
an authority who withdraws permission
2. withdrawer
an individualist who withdraws from social interaction
3. withdrawer
a drug addict who is discontinuing the use of narcotics
4. withdrawer
a contestant who withdraws from competition
5. withdrawer
a student who withdraws from the educational institution in which he or she was enrolled
6. withdrawer
a depositor who withdraws funds previously deposited
Source: WordNet® (An amazing lexical database of English)
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