(colloquial) Speaking of which; relatedly, used to introduce a related topic.

plural of gentleman of leisure

A gentleman who is of independent means and so does not need employment; a man who is free from duties and responsibilities; a dilettante.

(idiomatic, intransitive) to begin ascent under rocket power

Alternative spelling of blastoff

(chiefly Australia, UK) An order of chivalry established for the purpose of according recognition to Australian citizens and other persons for outstanding achievement.

(Australia, informal) An appointment made within the Order of Australia.

plural of captain of industry

(skiing) Someone who skis or snowboards off-piste

(astronomy) The intersection of an orbiting object's orbital plane with the plane of reference.