age, course, eternal, (for) ever(-more), (n-)ever, (beginning of the , while the) world (began, without end)

Strong’s Dictionary of Greek Words:

Greek:
αἰών
Transliteration:
aion
Phonic:
ahee-ohn’
Meaning:
from the same as 104; properly, an age; by extension, perpetuity (also past); by implication, the world; specially (Jewish) a Messianic period (present or future)
KJV Usage:
age, course, eternal, (for) ever(-more), (n-)ever, (beginning of the , while the) world (began, without end). Compare 5550