(of something solid) Having an empty space or cavity inside. / (of a sound) Distant, eerie; echoing, reverberating, as if in a hollow space; dull, muffled; often low-pitched.

(zoology) Having a long bill. / (zoology) Of or pertaining to the Longirostres.

Very much more than usually thick

(US, slang, derogatory) A homosexual man.