year

year /ˈjiɚ/ noun
plural years
year
/ˈjiɚ/
noun
plural years
Britannica Dictionary definition of YEAR
[count]
1 
: a unit of time that is equal to 12 months or 365 or sometimes 366 days
— see also calendar year, donkey's years, fiscal year, gap year, leap year
2 
: the regular period of 12 months that begins in January and ends in December
3 
— used to refer to the age of a person
4 
: a period of time when a particular event, process, activity, etc., happens or is done

glory years

— see 1glory

in the year of our Lord

formal
— used before a year to say that it is after the birth of Jesus Christ

never/not in a thousand/million/billion years

informal
— used as a strong way of saying that something is extremely unlikely or impossible

put years on

: to cause (someone) to look or feel older

since (the) year one

(US) informal or British since the year dot
: for a very long time : since a time in the distant past

take years off

: to cause someone to look or feel younger

vintage year

— see 1vintage