WordNet

relatively dense in consistency; "thick cream"; "thick soup"; "thick smoke"; "thick fog"
(of darkness) very intense; "thick night"; "thick darkness"; "a face in deep shadow"; "deep night" (同)deep
in quick succession; "misfortunes come fast and thick" (同)thickly
abounding; having a lot of; "the top was thick with dust"
having component parts closely crowded together; "a compact shopping center"; "a dense population"; "thick crowds"; "a thick forest"; "thick hair"
not thin; of a specific thickness or of relatively great extent from one surface to the opposite usually in the smallest of the three solid dimensions; "an inch thick"; "a thick board"; "a thick sandwich"; "spread a thick layer of butter"; "thick coating of dust"; "thick warm blankets"

PrepTutorEJDIC

『厚い』,分厚い;『太い』 / 《数量を表す名詞の後に用いて》『厚さ…の』,太さ…の / (液体・気体が)『濃い』,濃厚な / 『密な』,密生した,密集した / (なまりが)著しい,ひどい / (声が)はっきりしない,かすれた / (頭が)重い,ぼんやりした / 《話》ばかな,愚かな / 《話》親密な;(…と)親して《+with+名》 / 《補語にのみ用いて》(…で)いっぱいの,満ちた《+with+名》 / 『厚く』,分厚く,濃く,密に / 《the ~》(…)最も厚い(太い,濃い,密な)部分《+of+名》 / 《the ~》(活動などの)たけなわ,まっただ中《+of+名》