verb

faltar (tiempo que se indica para que se realice algo)

to be missing · to be left

No tener algo o no estar presente cuando se necesita o se espera.

Word: faltar

Meaning:
"Faltar" is a verb in Spanish that means "to be missing," "to lack," or "to be absent." It is an irregular verb.

Uses and meanings:

To be missing or absent:
It indicates that something or someone is not present where they should be.
- Example: Faltan dos estudiantes en la clase. (Two students are absent in class.)
To lack something:
It expresses the absence of something needed or desired.
- Example: Me falta dinero para comprar el libro. (I lack money to buy the book.)
  It can be considered similar to saying "I need" or "I don't have" something.
With time expressions, indicating time remaining:
Used to express how much time remains before an event occurs.
- Example: Faltan cinco minutos para la reunión. (There are five minutes left until the meeting.)

Parts and grammatical info:

Root: "falt-"
Common forms: falta (he/she/it lacks), faltan (they lack), falté (I lacked, preterite)
It often uses indirect object pronouns to indicate who lacks something: Me falta..., Te falta...

Synonyms:

carecer (to lack)
escasear (to be scarce)
ausentar(se) (to be absent)

Antonyms:

sobrar (to be left over, to have in excess)
tener (to have) when referring to possession or presence

In summary, "faltar" primarily deals with the absence or lack of something or someone, whether physically (someone missing), materially (lacking something), or temporally (time remaining before something happens).