A male child in relation to his parents.

Countable noun. Plural: sons. Note: 'son' and 'sun' are homophones (they sound the same: /sʌn/) — but they have different meanings. Common collocations: eldest son, youngest son, son-in-law (your daughter's husband).

'Like father, like son' is a common English proverb meaning a son resembles his father in character. 'The prodigal son' is a famous story from the Bible, now used to describe someone who returns home after a long absence.