Strong's Definition
apparently a shortened form of 369; but (like 370) an interrogative: is it not?
KJV Usage: not
STEPBible — Tyndale Abridged Hebrew Lexicon
אִין (in) — isn't?. Is there not?, Have you not?
UBS Dictionary of Biblical Hebrew
conj
Exist
Collocation: אִין יֵשׁ
is there ...? meaning unsure; probably: = a polite inquiry as to whether an object is present
1 1SA 21:9 LXX הֵן הֲיֵשׁ "see, is there ...?" | DCH אַיִן יֵשׁ | HALOT אֵי יֵשׁ or אֵין יֵשׁ
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
אִין 1 S 21:9 prob. irreg. for אֵין base