Definition ofwhereadverb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Jul 23, 2025 ·Check your refund Information is updated once a day, overnight.Where’s My Refund is unavailable each morning, generally between 4-5 a.m. Eastern time, while we make these updates. What you need Your Social Security or individual taxpayer ID number (ITIN) Your filing status The exact refund amount on your return Check your refund Prefer a mobile app? You can also check your refund with ... 4 meanings: 1. a. in, at, or to what place, point, or position? b. (used in indirect questions) 2. in, at, or to which (place).... Click for more definitions. You usewhereafter certain words, especially verbs and adjectives, to introduce a clause in which you mention the place in which something or someone is situated or happens.