Advanced Subsidiary level, in the UK: the exam taken in the first year of the sixth form, as a first stage in getting to the A-levels (A2) at the end of the sixth form. The modular format makes the distinction less clear.

(idiomatic) Up to the present; thus far.

(simile) Strange, odd, unusual. / (simile) Unusually camp, unusually homosexual.

(idiomatic) At or by a specified time, with the implication that the said condition will be true from that time onward.

(simile) Nearly totally blind, having a very poor sense of vision

(simile, colloquial, Tyneside) In good health; very fit.

(idiomatic) Lately; recently.

(simile, colloquial) Very much under the influence of drugs; extremely high.

(of an asset) Of enduring value. / (UK, of a person, simile) Very well-behaved.

(idiomatic) To the best of one's knowledge, as far as someone knows about the topic, subject, aspect, or situation.