He was the only person in the room Being healthy is the only thing that is important to me. Not more than a particular size or amount Not anyone or anything else Used to show that there is a single one or very few of something, or that there are no others… We can use what + noun phrase ( (+ verb) (+ tag))
We often use how followed by an adjective only Using only black, white, and grey, or using only one colour She's not only a painter but also a writer (= she is both) This is not caused by evil, but by simple ignorance Beauty is only skin deep meaning Used to say that a person's character is more important than how they look 2
