What does yom mean?
Yom is a specialized noun borrowed from Hebrew, where the word means “day.” In English it denotes a day, especially one marked by Jewish religious observance, celebration, mourning, or remembrance. Outside Jewish religious and cultural writing, the word is uncommon, and many English speakers encounter it chiefly as the first element of established holiday names. In names such as Yom Kippur and Yom Tov, yom retains its basic sense of “day.” The term can also carry a more specific sense as a sacred or commemorative day. Its rarity may make it sound more mysterious or archaic than the ordinary English day, but it is not merely decorative: it retains the Hebrew framing of a day as a meaningful religious unit. In Jewish calendars, many observances begin at sunset and continue into the following day, so “day” can denote a calendrical period rather than simply daylight. Knowing yom therefore helps readers recognize and interpret a wider range of Jewish calendar terminology. It is normally a countable noun; the conventional Hebrew-style plural is yomim, though plural use is uncommon in modern English.
nounA day, especially a day designated for Jewish religious observance, celebration, mourning, or remembrance. The word is also used as the first element in names of Jewish observances.
- A day, especially a day set apart for Jewish religious observance, celebration, mourning, or remembrance.
"The congregation gathered as the yom of remembrance began."
"The congregation gathered as the yom of remembrance began."
"Visitors came from around the world for Yom Kippur."
A Hebrew-style plural used in Jewish and biblical contexts; plural use in ordinary modern English is uncommon.
"The yomim of the festival are marked by distinctive prayers and observances."
Yom means “day” in Hebrew—and helps name some of Judaism’s most important observances.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of yom
The English noun is borrowed from Jewish usage based on Hebrew, where the source word means “day.” The term also appears through Yiddish, which uses the same word and reflects the shared Semitic origin. Hebrew yom belongs to the Proto-Semitic root *yawm, “day,” whose cognates include Arabic yawm, Aramaic yōmā, Akkadian ūm, and Geʲez ʿəm.
How yom is actually used
Mostly literary, liturgical, or Jewish cultural usage. Outside established names and specialized religious writing, it is uncommon in ordinary English and may sound archaic or literary.