To exchange for, especially money for goods or services.(verb)
To be punished or held accountable for.(verb)
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Use "pay for" in a sentence
"I had probably kited a check to pay for admission and an extra-large Coke to get me through my daily hangover."
"Northside ISD voters rallied Saturday to pass a $535-million bond that will pay for four new schools and renovations at current facilities."
"Although I was left with strange neurological bells and whistles—jingly nerve endings, tired, locked muscles, twitchy connections—it seemed a minuscule price to pay for being able to walk unassisted again."