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The ClueDeposit (7 letter answer)
NotesThe answer BUILDUP is so rare that it appears less than once every 2500 puzzles.
DefinitionBUILDUP as a noun:
1. the act of building up an accumulation; "I envied his rapid buildup of assets"; "a military buildup in preparation for the invasion"
2. the result of the process of accumulation; "the buildup of leaves blocked the drain pipes"
3. highly favorable publicity and praise; "his letter of recommendation gave her a terrific buildup"