plural of lumberjacket

(obsolete, UK, law) A form of conditional marriage-gift of land under English law, often from father to daughter.

Used other than figuratively or idiomatically: see go, both, ways. / (informal) To be, or be in, a mutual or reciprocal relationship or obligation. / (informal) To be bisexual.

(mathematics) A form (expression) that does not use limits, implicitly or explicitly. / (mathematics) A differential form whose exterior derivative is zero.