year of birth; birth year
Refers to the year a person was born. Common in formal contexts such as documents, forms, and historical records.
Please fill in your year of birth on the resume.
His year of birth is 1985.
age; number of years since birth
Used in expressions like 生年35歳 to state a person's age. This usage is somewhat formal and often appears in written descriptions or biographical notes.
The person is recorded as being 35 years old.
date of birth; birth date
Compound of 生 (life, birth) and 年 (year). The reading せいねん is the on'yomi of both characters.