An object whose nature is yet to be defined.

An uncertain or unspecified thing; one thing.

(colloquial, of someone or something) A quality to a moderate degree.

(colloquial, of a person) A talent or quality that is difficult to specify.

(colloquial, often with really or quite) Somebody who or something that is superlative or notable in some way.

Designates an action whose name is forgotten by, unknown or unimportant to the user, e.g. from words of a song.

Having a characteristic that the speaker cannot specify.

(degree) Somewhat; to a degree.

(colloquial, especially in certain set combinations) Used to adverbialise a following adjective