Of or pertaining to something that retains something else, as with a retaining wall.(adjective)
Present participle of retain.(verb)
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Use "retaining" in a sentence
"PINSKY: I think it might be what you call retaining the eye of the tiger."
"PINSKY: I think it what -- it might be what you call retaining the eye of the tiger."
"Indiana will receive up to $830,948 over the next four years to provide performance funding used to reward regional, four-year colleges for success in retaining and graduating students."