Entry 1 sense Webster, 1913 Thicket /thĭk'-ĭt/ · Thick·et · IPA /ˈθɪkɪt/ 01 n. A wood or a collection of trees, shrubs, etc., closely set; as, a ram caught in a thicket. 1. A wood or a collection of trees, shrubs, etc., closely set; as, a ram caught in a thicket.