Endowing with something is an act of giving or granting a certain quality, attribute, or characteristic to someone or something. Some synonyms for endowing with include bestowing, conferring, awarding, granting, affording, providing, supplying, equipping, furnishing, imbuing, instilling, imbuing, infusing, investing, giving, presenting, etc. All of these words convey the idea of giving something valuable to someone or something, be it a material object or an intangible quality. If you need to endow someone or something with a certain characteristic, consider using these synonyms to add variety to your writing.