at

в предлог:

в (in, to, at, into, on, for)

на (on, to, at, for, in, by)

при (at, in, under, by, over, o'er)

у (in, at, near, among, by, on)

за (for, per, over, at, behind, after)

около (about, around, near, at, beside, next)

имя существительное:

собака (dog, hound, at, pooch, bowwow)

сокращение:

атомный (at)

герметический (at)