Someone who does not give a definite opinion in a questionnaire / Something one is uncertain about.

Alternative form of I don't know

Used to indicate that the response is probably no, but that the speaker is not entirely certain.

Alternative form of God knows.

The state of knowing nothing; ignorance. / A perverse admiration or embrace of ignorance.

(informal) To be acquainted with the normal process or procedure of a given activity or situation; to be familiar with how something is done.

In something's current form, which is familiar to the speaker and listener.

(idiomatic) To ask (used as a dialogue marker or introductory statement).

The attitude of a know-it-all.

Third-person singular simple present indicative form of know better