boy / buoy [boi]
boy – n. – 1. a male child or youth; 2. a young man, esp. regarded as not yet mature; 3. a son; 4. offensive – a male servant; 5. a male belonging to a specified group; interj. – expressing pleasure, surprise etc.
buoy – n. – 1. an anchored float serving as a navigation mark or to show reefs, etc.; 2. a life buoy; v. intr. (usu. foll. by “up”) – 1. keep afloat, sustain the courage or spirits of (a person, etc.), uplift, encourage; 2. mark w. a buoy or buoys.