is

Pronunciation: [ˈɪs]

“is” is a Latin word. Its 9 meanings in English:

pronoun

this or that man, woman or thing; he, she, it, they (previously introduced)
Picks up the subject or object after an intervening clause, to avoid repeating the relative pronoun quī, or substitutes syntactically fronted expressions
of such a nature, degree, kind (previously mentioned or implied)
the following; of the following nature, degree, kind
this or that [man, woman or thing] (as a noun phrase modifier)
such a, that sort of
Substituting a clause.
As an internal accusative: for that reason, on that account
Used in various prepositional phrases.

From Proto-Italic *is, from Proto-Indo-European *ís. Cognate with Oscan izic, Umbrian 𐌄𐌓𐌄 (ere), and further with Lithuanian jis, Proto-Slavic *jь.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.