Hebrew and Greek Strong's Dictionary with all the definitions plus combined with every place that word is used in the definitions.
Complete index of every word used in both the Hebrew and Greek Strong's Dictionary in English Word order.
Hebrew and Greek Expanded Dictionary
observation 03045 ## yada` {yaw-dah'} ; a primitive root ; to know (properly , to ascertain by seeing) ; used in a great variety of senses , figuratively , literally , euphemistically and inferentially (including {observation} , care , recognition ; and causatively , instruction , designation , punishment , etc .) [as follow ] : -- acknowledge , acquaintance (- ted with) , advise , answer , appoint , assuredly , be aware , [un-] awares , can [-not ] , certainly , comprehend , consider , X could they , cunning , declare , be diligent , (can , cause to) discern , discover , endued with , familiar friend , famous , feel , can have , be [ig-] norant , instruct , kinsfolk , kinsman , (cause to let , make) know , (come to give , have , take) knowledge , have [knowledge ] , (be , make , make to be , make self) known , + be learned , + lie by man , mark , perceive , privy to , X prognosticator , regard , have respect , skilful , shew , can (man of) skill , be sure , of a surety , teach , (can) tell , understand , have [understanding ] , X will be , wist , wit , wot
observation 3700 - optanomai {op-tan'-om-ahee}; a (middle voice) prolonged form of the primary (middle voice) optomai {op'-tom-ahee}; which is used for it in certain tenses; and both as alternate of 3708; to gaze (i.e. with wide-open eyes, as at something remarkable; and thus differing from 0991, which denotes simply voluntary {observation}; and from 1492, which expresses merely mechanical, passive or casual vision; while 2300, and still more emphatically its intensive 2334, signifies an earnest but more continued inspection; and 4648 a watching from a distance): -- appear, look, see, shew self.