"LOSE" and "LOOSE"

"Lose" means to fail to win or misplace. "Loose" means not tight or free. Ex.: I don't want to lose my keys. The button on my shirt is loose.

"IMPLY" and "INFER"

"Imply" means to suggest indirectly. "Infer" means to deduce or conclude from evidence. Ex.: Her silence seemed to imply disapproval. From her reaction, we can infer that she is unhappy.