1) In a big way 2) In large measure 3) To a great extent or degree 4) To a large degree 5) Very much 6) Very much like Britain Found on https://www.crosswordclues.com/clue/greatly
Great'ly adverb 1. In a great degree; much. « I will greatly multiply thy sorrow.» Gen. iii. 16. 2. Nobly; illustriously; magnanimously. « By a high fate thou greatly didst expire.» Dryden. Found on http://www.encyclo.co.uk/webster/G/55