The term 'SMELL OR TASTE' can be summarized by the crossword solution 'SENSE, ' which is a five-letter word. SENSE is a term used to describe the ability to perceive or detect external stimuli, such as smells and tastes. Smell and taste are two of the five senses that humans possess, along with sight, hearing, and touch. Smell and taste are closely related, as they both involve the detection of molecules in the environment.