pay off: to turn out to be profitable, effective, etc. com/dictionary/english/pay-off
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
JumanahThe expenditure seems to be paying off has the same meaning as the expenditure seems to be effective. Is that correct?!More or less, yes. (To make the tenses agree, it would be "seems to be being effective", but that is ugly.)