Zodiacs are divided into twelve equal divisions or signs, each occupying 30° of celestial longitude and roughly corresponding to the star constellations: Aries, Taurus,
Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces.
Zodiac Signs are like
people whose birthdays are in a certain month. They all have different names(signs) for each month (and sorta date, it's divided equally as there are 12 divisions/signs) there is in a year.
For example,
October 23 - November
21 birthdays are called a "Scorpio", which has a meaning to the name, how Scorpios tend to act, their type of personality, and what type of division(element sign) they are.
For more explanation on how zodiacs work, here's some examples using the zodiac sign, Scorpio:
Scorpios' sign is a
water sign meaning it's in the
water division.
Not every sign is in the
water division as Aries is a fire sign.
There's many deep and simple descriptions of each zodiac and their personality.
"Scorpios are intense and deep just like their element
water. They possess a personal magnetism by which they can persuade anyone easily." is an example of a deep, but simple description of the zodiac, Scorpio, if you want an idea of one.