Third-person singular simple present indicative form of reckon with

present participle of reckon with

Able to be reckoned or computed.

simple past tense and past participle of reckon upon

simple past tense and past participle of reckon without

simple past tense and past participle of reckon out

simple past tense and past participle of reckon up

A method of estimating the position of a ship or aircraft by applying estimates of the distance and direction travelled to a previously known position. In respect to ships/boats, it excludes the effect of wind and current on the vessel. Compare with estimated position. Abbreviation: DR

(idiomatic, uncommon, archaic) A (falsified) bill that is not itemised, and that is unjustifiably high. / (nautical) A false or incorrect reckoning of position.

Used other than figuratively or idiomatically: see reckon, without. / To ignore; to fail to consider.