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

• moedermotherde moeder; informal: mama/mam
• vaderfatherde vader; informal: papa/pap
• oudersparentsde ouders; plural
• zussisterde zus; also zuster (more formal); no older/younger distinction
• broerbrotherde broer; no older/younger distinction
• omagrandmotherde oma; everyday word. Formal: grootmoeder
• opagrandfatherde opa; everyday word. Formal: grootvader
• dochterdaughterde dochter
• zoonsonde zoon
• tanteauntde tante; applies to both maternal and paternal aunt
• oomunclede oom; applies to both maternal and paternal uncle
• familiefamilyde familie; refers to extended family/relatives. Immediate household: gezin
• neefmale cousin (also nephew)de neef; one word covers both cousin and nephew (son of aunt/uncle or of sibling)
• nichtfemale cousin (also niece)de nicht; one word covers both cousin and niece
• babyde baby; borrowed from English. Also: kindje (little child)
• manhusbandde man; literally 'man'. Also echtgenoot (formal). Possessive context: mijn man = my husband
• vrouwwifede vrouw; literally 'woman'. Also echtgenote (formal). mijn vrouw = my wife
• broers en zussensiblingsno single word for 'siblings'; Dutch says 'broers en zussen' (brothers and sisters)
• kleinkindgrandchildhet kleinkind; kleinzoon = grandson, kleindochter = granddaughter
• grootoudersgrandparentsde grootouders; plural