כִּי (kî ʿal kēn) is
a Hebrew conjunction
meaning that. It appears
4488 times
in 39 books of the Hebrew Bible
(Strong's H3588).
Also rendered
relative conjunction
forasmuch as
for
Same Hebrew root (TWOT 976)
Range of meaning (TWOT 976)that, for, when; though; Because, since; that if, for if; except, but rather, but, surely; forasmuch as; relative conjunction; and, as, assured, assuredly, certainly, doubtless, else, even, how, nevertheless, now, rightly, seeing…
Full entry: Brown-Driver-Briggs and Strong's
כִּיconjunction: that, for, when
1.that
2.
a.Of time, when, of the past
b.if, though it usually represents a case as more likely to occur than אִם
c.when or if, with a concessive force, i.e. though
3.Because, since
כִּי אם־
1.each part. retaining its independent force
a.that if
b.for if
2.(About 140 times) the two particles being closely conjoined
a.except
b.the if being neglected, so that the clause is no longer a limitation of the preceding clause but a contradiction of it: but rather, but
c.after an oath, surely
כִּי עַל כֵּן: forasmuch as
Strong's H3588כִּי: (by implication) very widely used as a relative conjunction or adverb (as below); often largely modified by other particles annexed KJV:and, (forasmuch, inasmuch, where-) as, assured(-ly), but, certainly, doubtless, else, even, except, for, how, (because, in, so, than) that, nevertheless, now, rightly, seeing, since, surely, then, therefore, (al-) though, till, truly, until, when, whether, while, whom, yea, yet.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.