simple past tense and past participle of regulise

(aviation, travel) A callsign assigned to a commercial flight for the purposes of reservation and ticketing, typically consisting of a 2 character airline code and a 1 to 4 digit number to indicate...

(chiefly of text) That is written (and is read) from left to right.

To stand about without any aim or purpose; to stand about idly. / To remain at a certain place instead of moving on. / (military, aviation) For an aircraft to remain in the air near a target.