The difference between At bay and Away

At bay is also phrase with the meaning: unable to come closer.

Away is also interjection with the meaning: come on!.

Away is also adverb with the meaning: from a place, hence.

Away is also adjective with the meaning: not here, gone, absent, unavailable, traveling.

check bellow for the other definitions of At bay and Away

Away as an adverb:

From a place, hence.

Examples:

"He went away on vacation."
Away as an adverb:

Aside; off; in another direction.
Away as an adverb:

From a state or condition of being; out of existence.
Away as an adverb (as imperative, by ellipsis):

Come away; go away; take away.
Away as an adverb:

On; in continuance; without intermission or delay.

Examples:

"sing away'"
Away as an adverb:

Without restraint.

Examples:

"You've got questions? Ask away!"
Away as an adverb:

Being so engaged for the entire time.

Examples:

"That's where tourists go to hear great Cuban bands and dance the night away."
Away as an adverb:

At a distance in time or space.

Examples:

"Christmas is only two weeks away."

Away as an adjective:

Not here, gone, absent, unavailable, traveling; on vacation.

Examples:

"The master is away from home."

"Would you pick up my mail while I'm away."
Away as an adjective (following the noun modified):

At a specified distance in space, time, or figuratively.

Examples:

"He's miles away by now."

"Spring is still a month away."
Away as an adjective (chiefly, sports):

Not on one's home territory.

Examples:

"Entrance for away supporters."

"Next, they are playing away in Dallas."
Away as an adjective (baseball, following the noun modified):

Out.

Examples:

"Two men away in the bottom of the ninth."