polish (something)
he buffed the glass until it gleamed
make (an element in a role-playing or video game) more powerful
there are cards that'll buff your troops
Today’s NYT Connections Answers Apr 18, #312 - Daily Updates & Hints
Today’s Wordle Answer Apr 18 #1034- NYT Wordle Hints & Updates
NYT Mini Crossword Answers Today - The Mini for Apr 18 Solved
NYT Strands Today - Hints, Spangram & Answers for April 18