... is a noun referring to something that we can seeor touch, e.g. man, bottle, grass, shop. An abstract noun refers to an idea, qualityor action, something we cannot see or touch, e.g. science, ... threewrite to someonevisit someonetalk to someoneprotest about/against somethingon Fifth Avenueon the weekend/on weekendsa player on the teamtwenty (minutes) past/after tenten (minutes) to/ of ... someone/write to someonevisit someone/visit with someonetalk to/ with someoneprotest somethingprotest about/against something5 Prepositions after differentGB: Your room is different from /to ours.US:...