Real Dictionary

out adjective and adverb uses
If a light or fire is out or goes out, it is no longer shining or burning.

out adverb uses
When something is in a particular place and you take it out, you remove it from that place.

out in American English
away from, forth from, or removed from a place, position, or situation
adverb: away from, or not in, the normal or usual place, position, state, etc

out in British English
adverb: at or to a point beyond the limits of some location; outside

out verb use
verb: If a group of people out a public figure or famous person, they reveal that person's sexuality or gender identity against their wishes.

out-
prefix: You can use out- to form verbs that describe an action as being done better by one person than by another. For example, if you can outswim someone, you can swim further or faster than they can.

out- in American English
situated at or coming from a point away, outside, external
prefix: a prefixal use of the adverb out, occurring in various senses in compounds ( outcast; outcome; outside), and serving also to form many transitive verbs denoting a going beyond, surpassing, or outdoing in the particular action indicated ( outbid; outdo; ou

out- in British English
prefix: excelling or surpassing in a particular action