(of quantities) imprecise but fairly close to correct; "lasted approximately an hour"; "in just about a minute"; "he's about 30 years old"; "I've had about all I can stand"; "we meet about once a month"; "some forty people came"; "weighs around a hundred pounds"; "roughly $3,000"; "holds 3 gallons, more or less"; "20 or so people were at the party"
move to and fro; "The shy student lingered in the corner"
be undecided about something; waver between conflicting positions or courses of action; "He oscillates between accepting the new position and retirement"
a method of surveying; the area is divided into triangles and the length of one side and its angles with the other two are measured, then the lengths of the other sides can be calculated
a trigonometric method of determining the position of a fixed point from the angles to it from two fixed points a known distance apart; useful in navigation
the act of terminating a project or procedure before it is completed; "I wasted a year of my life working on an abort"; "he sent a short message requesting an abort due to extreme winds in the area"
terminate a pregnancy by undergoing an abortion
cease development, die, and be aborted; "an aborting fetus"
terminate before completion; "abort the mission"; "abort the process running on my computer"