verb (used without object), grinned, grin·ning.
verb (used with object), grinned, grin·ning.
Origin of grin1
Synonyms for grin
Examples from the Web for grinner
Historical Examples of grinner
Omega named it The Grinner, because of its habitual and ghastly smile.
The Grinner sleeping in the sand was the only form of life to be seen, and at last he became weary of the hunt.
verb grins, grinning or grinned
Word Origin for grin
Old English grennian "show the teeth" (in pain or anger), common Germanic (cf. Old Norse grenja "to howl," grina "to grin;" Dutch grienen "to whine;" German greinen "to cry"), from PIE root *ghrei- "be open." Sense of "bare the teeth in a broad smile" is late 15c., perhaps via the notion of "forced or unnatural smile." Related: Grinned; grinning.
1630s, from grin (v.).