There are 12 houses. These are 12 sectors, divisions of the sky, whose positions depend on time and location rather than on a date.
Meaning of houses
I.Personality. II.Gain. III.Brothers, neighbors. IV.Parent, family. V.Love, children. VI.Health. VII. Partner. VIII.Extremal situations. IX. Journeys, high education. X.Career. XI.Friends. XII. Spirituality, karmic limitations.
Angular houses are the most important. It’s Ascendant, IC, Descendant, and MC.
About Ascendant in Zodiac signs you’ll find here: