a person who always expects good things to happen or things to be successful; someone who always believes that good things will happen

a person who enjoys doing dangerous things, in a way that other people may think is stupid

a man who tends to take control in social and professional situations; the man who has the most power and influence and the highest social position in a particular group

a person who is very intelligent and is only interested in studying; a person, especially a man, who is very clever and interested only in studying and other mental activities

a person who is very interested in computers; a person who is boring, wears clothes that are not fashionable, does not know how to behave in social situations, etc.; a person who is very interested in and who knows a lot about a particular subject

someone who is very interested in fashion and who likes the very newest styles; someone who works in or writes about the fashion industry; a fashion designer, or a person who is always dressed in a fashionable way

an enthusiastic person who works very hard; someone who is too keen and works harder than they should

a person who helps to solve problems in a company or an organization; someone who is employed by a company to deal with serious problems it is having

a person who talks carelessly, often telling secrets to other people; a person who tells secrets because they talk too much

a person who gets up, arrives, etc. very early

someone who has a lot of power or influence in a company or an area of business; an important person; a person or an organization with a lot of power or influence

a person who starts a new fashion or makes it popular; a person, organization, etc. that starts new fashions, especially in clothes

a person who talks a lot, especially a child

someone who has few ideas of their own and does or says exactly the same as someone else