(とし)

とし
noun
year, age
time-general
1. year
A calendar year or a period of one year. 今年(ことし) (this year), 来年(らいねん) (next year).
This year is busy.
Let's meet again next year.
It's getting hotter year by year.
This year marks three years. Next year will be the fourth.
2. age
A person's age. (とし)()る (to age), 年上(としうえ) (older).
(とし)いくつ
How old are you?
(とし)()った
I got older.
She looks younger than her age.
As you get older, your body gets weaker. But you gain experience.

(とし) has two main meanings: calendar year and a person's age.

Pronunciation

Year expressions

Age expressions

CONTRAST WITH 年齢(ねんれい):
年齢(ねんれい) is more formal and specifically means "age" (not year). (とし)いくつ? (casual) vs. 年齢(ねんれい)? (formal).