looker:
(plural: ‘lookers‘)

a (good) looker (a beautiful girl)
a person who looks (at something or someone) — a person who examines/observes something very closely and carefully (Note: in this context, there are different and more suitable words used more commonly, e.g. ‘examiner’, ‘investigator’, ‘watcher’, ‘spectator’, etc., depending on the situation. Using the word ‘looker’ in this context is very rare.);
(also ‘good looker’) a person, usually a woman, who is good/beautiful to look at;
a beautiful person,

a looker looking at some pictures/paintings
Adam’s girlfriend is a (good) looker and he’s so possessive of her that he doesn’t even introduce his friends to her. (i.e. Adam’s girlfriend is a very beautiful girl)
The new jeweller’s at the mega mall are looking for some young lookers who can attract customers to their shop. (i.e. young beautiful girls to work in the jewellery shop)
There are some marketing experts who can turn the lookers of your products into buyers of your products. (i.e. the experts can make the people who just look at your products but do not buy become your customers and buy your products with their marketing plans)
There were many lookers at the exhibition but only a few of them bought any paintings because most of the paintings were either expensive or did look very interesting or attractive. (i.e. people who are interested in paintings and visit galleries and exhibitions and sometimes buy interesting paintings there)
Note 2: ‘Looker’ is less commonly used for “onlooker” which means a person who just watches a street fight, a road accident or some other thing, standing at a distance, without taking any part in it.
Note 3: ‘Looker’ is also used in computer language to refer to some application. For an article that shows us how we come across this word in computer software, please click here.
