The term SANTA'S SOUNDS is a reference to the sounds associated with Santa Claus, a mythical figure who is said to bring presents to children on Christmas Eve. The crossword solutions for this term are HOS (3 letters) and HOHO (4 letters). HOS is an abbreviation of the phrase 'Ho, ho, ho, ' which is the sound that Santa Claus is traditionally said to make when he laughs. HOHO is an alternate spelling of the same phrase.