gem /d͡ʒɛm/noun 9verb 1forms 4 noun9 •A precious stone, usually of substantial monetary value or prized for its beauty or shine.And on her head she wore a tyre of gold, Adornd with gemmes and owches wondrous fayre, Whose passing price vneath was to be told — 1590 •A strong, dominating pitching performance.He didn’t walk a batter in his 100-pitch gem — 2025 •(figurative) Any precious or highly valued thing or person.She's an absolute gem. •(figurative) Anything of small size, or expressed within brief limits, which is regarded as a gem on account of its beauty or value, such as a small picture, a verse of poetry, or an epigram. •(Internet, figurative) Internet content of good quality. •A package containing programs or libraries for the Ruby programming language. •A geometrid moth of the species Orthonama obstipata. •(no longer used) A gemma or leaf bud.Then from the Joynts of thy prolifick Stemm A swelling Knot is raised (call’d a Gemm) — 1668 •(no longer used) A size of type between brilliant (4-point) and diamond (4½-point), running 222 lines to the foot. verb1 •To adorn with, or as if with, gems.A few bright and beautiful stars gemmed the wide concave of heaven[…]. — 1827 formsgemmed · gemming · gems · GEMs