si.
if
Meaning & usage
if
Where this word comes from
From Old Catalan si, from Latin si (“if”).
si (seventh note of a diatonic scale)
Where this word comes from
From Latin Sancte Iohannes (“Saint John”) in the hymn for St. John the Baptist.
cavity, depression
sinus
uterus
front portion of the breast
heart
estuary, bay
Where this word comes from
From Old Catalan si~sin, from Latin sĭnus.
himself, herself, itself
oneself
themselves
each other
Where this word comes from
From Latin sĭbī.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.