In short

Alongside the של (shel) construction of lesson 10, Modern Hebrew has a second, tighter way to link two nouns: it simply stands them side by side, with nothing in between. בית ספר (beit sefer) is literally “house-of book” — it means “school”. This is the סמיכות (smichut, “construct state”): two nouns glued into one meaning “X of Y”, written as two words with no של and no ה־ between them.

Smichut is the everyday way Hebrew builds compound names for things — a school, a hospital, orange juice, a birthday. The first noun (the נסמך, nismach) leans on the second (the סומך, somech). Two small things change when the pair forms: a feminine noun swaps its final ־ה for ־ת, and if you want to say “the X of Y”, the article ה־ lands on the second noun only. Everything else you already know.

The rule

• A construct pair is two nouns placed one after the other — no של, no linking word. You name the thing (nismach), then immediately name what it belongs to or is made of (somech): בית ספר (beit sefer, “school”), מיץ תפוזים (mitz tapuzim, “orange juice”). The relation “of” is carried by the word order alone. This is the tighter cousin of the productive של phrase (lesson 10): use של for free, one-off possession (הספר של המורה, “the teacher’s book”), and smichut for fixed compounds and set names.

• First noun = nismach, second = somech; the meaning is “nismach of somech”. The nismach comes first and is the head — בית ספר is a kind of house (a “book-house”), i.e. a school. The stress and the definiteness of the whole phrase are decided at the end, on the somech, as the rest of the rules show.

• A masculine noun usually looks the same — only its vowel shifts. בית on its own is read bayit (“a house”); inside a pair it is read beit (“house-of”). But in ktiv male the spelling is identical: בית either way. You hear the change, you do not write it — so do not go looking for a new spelling of the masculine nismach.

• A feminine noun ending in ־ה changes it to ־ת. This is the one written change you must make. עוגה (uga, “cake”) → עוגת שוקולד (ugat shokolad, “chocolate cake”); ארוחה (arucha, “meal”) → ארוחת בוקר (aruchat boker, “breakfast”); תחנה (tachana, “station”) → תחנת אוטובוס (tachanat otobus, “bus station”). Dropping the ־ת is a mistake.

• Definiteness lives on the somech but colors the whole phrase. To turn “a school” into “the school”, you attach ה־ to the second noun only: בית הספר (beit ha-sefer, “the school”), שם המשפחה (shem ha-mishpacha, “the surname”). One ה־, on the somech, makes the entire pair definite. This builds directly on the article of lesson 2 — it is the same ה־, just placed at the far end.

• Never put ה־ on the nismach. Because English says “the school”, learners reach for ה on the first word: הבית ספר is wrong. The article goes on the somech: בית הספר. The nismach never carries its own article inside a construct pair.

• Never wedge של into a fixed pair. מיץ תפוזים is “orange juice”; מיץ של תפוזים breaks the compound. If the two nouns form a set name, they stand bare and adjacent.

Forms & patterns

Basic construct pairs — masculine nismach, spelling unchanged, only the reading shifts (bayit → beit):

Feminine nismach: final ־ה → ־ת — the one change you actually write:

Making the pair definite — ה־ goes on the somech only, yet the whole phrase becomes “the …”:

Examples

Common mistakes

• הבית ספר -> בית הספר (beit ha-sefer) - the article never sits on the nismach; ה־ attaches to the somech, the second noun.
• בית של ספר -> בית ספר (beit sefer) - no של inside a construct pair; the two nouns simply stand together.
• עוגה שוקולד -> עוגת שוקולד (ugat shokolad) - a feminine nismach ending in ־ה must switch to ־ת; keeping the ה is wrong.
• הארוחת בוקר -> ארוחת הבוקר (aruchat ha-boker) - to definitize, add ה only to the somech, never to the front of the phrase.
• מיץ של תפוזים -> מיץ תפוזים (mitz tapuzim) - “orange juice” is a fixed compound built with smichut, not a של possession.
• תחנה אוטובוס -> תחנת אוטובוס (tachanat otobus) - the feminine תחנה shifts to תחנת in construct; don’t leave it in its standalone form.

Tips

• Read a pair as “X of Y”: בית ספר = “house-of book” = school; מיץ תפוזים = “juice-of oranges”. The “of” is invisible — there is no של and no ה between the two nouns.
• Masculine nouns mostly keep their spelling; only the vowel drops (bayit → beit, both spelled בית). Don’t hunt for a written change that isn’t there.
• Feminine ־ה almost always becomes ־ת in construct: עוגה → עוגת, ארוחה → ארוחת, תחנה → תחנת. Train this switch as a reflex.
• Definiteness rule of thumb: the ה goes on the last word but means “the” for the whole thing — בית הספר = “the school”, not “house the-book”.
• Pick smichut for set compounds and names for things (bus station, orange juice, birthday); pick של (lesson 10) for free, one-off possession (הספר של המורה). If it feels like a single dictionary entry, it’s usually smichut.
• Watch the prefix on a definite pair: ב + בית הספר → בבית הספר (be-veit ha-sefer, “at the school”). Here the ה־ sits on the somech, far from the prefix, so nothing fuses: the ב stays plain be- — not the ba- of lesson 2’s בבית (ba-bayit) — and the only change is that the ב of בית softens to v.
• Many everyday words you already use are smichut pairs — say them as one tight unit, stress on the somech.