What does "smithson" mean?

A surname originating as an occupation or as a patronymic for a son of a smith.

What is a synonym for "smithson"?

Common synonyms include: family name, james smithson, last name, the founder.

/ˈsmɪθ.sən/ name

name ·Rare ·Advanced level

Proper Noun

1
A surname originating as an occupation or as a patronymic for a son of a smith. countable, uncountable
2
An unincorporated community in Big Creek Township, White County, Indiana, United States. countable, uncountable

"Helena Smithson, née Dickers, is not a woman to be messed with."

From smith + -son.