(sports) The act of an athlete starting a race before being signaled to do so. / (American football) The act of an offensive player moving across the line of scrimmage prior to the snap.

(cartography) A value relating to distance north of a standard latitude but with a constant added to make the numbers convenient. For instance, in UTM, the Southern Hemisphere is assigned negative degrees of latitude, but to avoid negative numbers in northings, a constant value of 10,000,000 is added so that negative numbers for northings do not occur.

(cartography) A value relating to distance east of a standard meridian but with a constant added to make the numbers convenient. For instance, in UTM the value 500,000 is added to the easting from the center of each zone to return a false easting that is never negative (the smallest true easting is approximately -340,000 which is set to false easting of 160,000).

(botany) A fruit which includes tissue not derived from the ovary but some adjacent tissue.

plural of false friend

(idiomatic) To seem to be incorrect, or implausible.

A misstep; a stumble. / (figuratively) An erroneous action or decision.

A non-poisonous, but dull-tasting mushroom that resembles chanterelle; Hygrophoropsis aurantiaca.

plural of false modesty

A uterine growth consisting of some degenerate mass instead of a foetus.