1. To have just and adequate ideas of; to comprehend; to know; to apprehend; to know the meaning of; to suppose to mean; to interpret; to mean without expressing; to know what is not expressed; to learn; to be informed.

2. To have intelligence; to be informed; to learn.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• unjderstand,
• anderstant,
• understodd,
• understeand,
• andestand,
• understans,
• understanmd,
• enderstand,
• undertand,
• undetand,
• understtod,
• understang,
• undestands,
• understandf,
• underatand,
• nderstand,
• understanad,
• understaqnd,
• understandng,
• unnderstand

• undercut,
• undertaker,
• underpart,
• understood,
• undershirt,
• undersexed,
• underground,
• under wraps,
• understated,
• underspend,
• undermanned,
• undergraduate,
• underbody,
• undershoot,
• underfur,
• undersell,
• underbid,
• underframe,
• underseal,
• underrating,
• under it,
• underboss,
• underrate,
• underived,
• underage,
• underscore,
• underskirt,
• understock,
• underact,
• underfed,
• undershot,
• undersurface,
• underplay,
• under arms,
• undervalue,
• undergrad,
• undershrub,
• underdog,
• undersealed,
• underfelt,
• underarm,
• understaffed,
• underside,
• underwear,
• understanding,
• underpin,
• underway,
• under way,
• undersoil,
• Underdahl,
• underclass,
• underdone,
• underpay,
• underwood,
• unaddressed,
• underlay,
• undertide,
• underhanded,
• underneath,
• undercoated,
• underdown,
• underhandedly,
• undersize,
• undercurrent,
• undersized,
• underfoot,
• understudy,
• underbred,
• underhand,
• underwater,
• underslung,
• undercoat,
• underpass,
• under attack,
• undersea,
• undergird,
• undersign,
• underworld,
• underpants,
• undertake,
• underspent,
• understate.

The adverb for the word "understand" is "understandably".

The adjective form of the word "understand" is "understandable".

The plural form of the word "understand" is "understands"

The singular form of the word "understand" is "understands"