| a power of perception beyond the five senses; intuition: His sixth sense warned him to be cautious. |

| sixth sense n. A power of perception seemingly independent of the five senses; keen intuition. |
sixth sense
Keen intuition, as in She had a sixth sense that they would find it in the cellar. This term alludes to a sense in addition to the five physical senses of sight, hearing, smell, taste, and touch. [c. 1800]