The people closest to you — parents, siblings, grandparents, and the rest.

• äitimother
• isäfather
• siskosister (common; standard: sisar)
• velibrother
• isoäitigrandmother
• isoisägrandfather
• tytärdaughter
• poikason (also: boy)
• tätiaunt (either side; no separate maternal-aunt word)
• setäuncle (father's brother); note: mother's brother = eno
• perhefamily
• vanhemmatparents
• aviomieshusband
• vaimowife
• vauvababy
• lapsichild