Indefinite time (4 letters)

{ Answer }

ONCE

{ Related Clues }

"___ is enough"
Erstwhile
Formerly
Singly
As soon as
Whenever
Enough, for some
Grimm beginning
Head of a tale
If ever
"___ in Love with Amy"
A single time
In some yesterday
Story starter
Story's start
Tale starter
"___ Upon a Mattress"
Without repetition
Fairy tale start
Fairy-tale starter
First word of "The Raven"
Less than rarely
Thrice minus twice
A bit more than never

{ Tags }

ago, all, enough, erstwhile, fairy, first, formerly, head, once, opener, past, single, some, soon, start, starter, story, tale, time, twice, word

{ Notes }

The answer ONCE is very common and appears about once every 32.2 puzzles.

{ Definition }

ONCE as an adverb:

1. (once, one time, in one case) = on one occasion; "once I ran into her"

2. as soon as; "once we are home, we can rest"

3. (once, formerly, at one time, erstwhile, erst) = at a previous time; "at one time he loved her"; "her erstwhile writing"; "she was a dancer once";