Nouns:
* Rex (king)
* Pax (peace)
* Lux (light)
* Vox (voice)
* Fex (clay)
* Nix (snow)
* Vix (scarcely)
* Mors (death)
* Ars (art)
* Vis (force)
* Dos (dowry)
* Mens (mind)
* Res (thing)
* Flos (flower)
Adjectives:
* Par (equal)
* Brevis (short)
* Magnus (great)
* Bonus (good)
* Malus (bad)
* Fortis (strong)
* Gravis (heavy)
* levis (light)
Verbs:
* Est (is)
* Sum (I am)
* Sit (he/she/it sits)
* Fac (do)
* Fer (bear)
* Dic (say)
* Ven (come)
* Edim (I eat)
Prepositions:
* Ad (to, towards)
* In (in, into)
* De (from, of)
* Ex (from, out of)
* Per (through)
* Pro (for)
* Con (with)
* Cum (with)
* Ob (against)
Other:
* Et (and)
* Sed (but)
* Nam (for)
* Quid (what)
* Ubi (where)
* Quis (who)
Remember that these words are often the root of larger words, and their meaning can vary depending on the context.
Let me know if you'd like more examples or want to explore specific categories of Latin vocabulary words!