Wiktionary's word of the day: 30th April 2023 obliterate: 1. (transitive) 2. To destroy (someone or something) completely, leaving no trace; to annihilate, to wipe out. 3. To hide (something) by covering it; to conceal, to obscure. 4. (also figuratively) To make (a drawing, text which is printed or written, etc.) indecipherable, either by erasing or obscuring it; to blot out, to efface, to delete. 5. (biology, pathology, surgery, chiefly passive) To impair the function and/or structure of (a body cavity, vessel, etc.) by ablating or occluding it (in the latter case, chiefly by filling it with tissue). 6. (philately) To cancel (a postage stamp) with a postmark so it cannot be reused. 7. (intransitive) 8. To remove completely, leaving no trace. 9. (biology, pathology) Of a body cavity, vessel, etc.: to close up or fill with tissue; of perfusion or a pulse: to cease owing to obstruction. 10. (except poetic) Completely destroyed or erased; effaced, obliterated. 11. (entomology, rare) ...