Third-person singular simple present indicative form of resize.(verb)
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Use "resizes" in a sentence
"Acer GridVista software simultaneously shows up to eight windows on dual displays and automatically resizes open application windows to fit the screen for fantastic multitasking."
"Any web site that tries to make me fill out a form to subscribe to something (without first letting me look through the site), resizes my browser window, or does anything that requires me to do more than read and “ooh and ahh” at your pictures is going to make me leave your site pretty quickly, too."
"But unfortunately, it was stuck into an awful template that partially resizes with your browser."