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
eternity 05703 ## ` ad {ad} ; from 05710 ; properly , a (peremptory) terminus , i . e . (by implication) duration , in the sense of advance or perpetuity (substantially as a noun , either with or without a preposition) : -- {eternity} , ever (- lasting ,-more) , old , perpetually , + world without end .
eternity 05769 ## ` owlam {o-lawm'} ; or` olam {o-lawm'} ; from 05956 ; properly , concealed , i . e . the vanishing point ; generally , time out of mind (past or future) , i . e . (practically) {eternity} ; frequentatively , adverbial (especially with prepositional prefix) always : -- alway (- s) , ancient (time) , any more , continuance , eternal , (for , [n-]) ever (- lasting ,-more , of old) , lasting , long (time) , (of) old (time) , perpetual , at any time , (beginning of the) world (+ without end) . Compare 05331 , 05703 .
eternity 3772 - ouranos {oo-ran-os'}; perhaps from the same as 3735 (through the idea of elevation); the sky; by extension, heaven (as the abode of God); by implication, happiness, power, {eternity}; specifically, the Gospel (Christianity): -- air, heaven( [-ly]), sky.