Happening hourly, but at 30 minutes past each hour; ie, 08:30, 09:30 etc. / Happening on the hour and at 30 minutes after the hour. / (soccer) At thirty minutes into a half.

(idiomatic) something which is overabundant at the moment and thus not in demand.

(conjunctive) Opposite of what had earlier been expected or assumed.

Taking place between black people.

(idiomatic) In suspense; waiting eagerly or anxiously for some resolution.

Adjectival or attributive form of angels dancing on the head of a pin.

(figuratively) The subject of arcane intellectual speculation; used as an example subject of enquiry the pursuit of which is of no value.

Offered for sale. / During a real estate auction: going to be sold at that auction, i.e. the bid has reached the vendor's reserve.

To focus on getting correct details which are largely irrelevant.

That attaches to something by means of a clip.