"Household" usually can be interchangeable with "domestic", but not always the other way around.
For example, you don´t usually say a "household flight" but a "domestic flight" or "household commerce" but ''domestic commerce''.
So, household is more, say, "within home/family stuff" or in the sense of "well known by everyone" ("a household name", albeit it´s a name well all over the country or even the world over).
Domestic might means both, something "from around house/family matters etc" something from the state, national etc; compared to their international counterparts (domestic commerce vs international commerce etc...)
n 1 casa, lar. 2 família. 3 negócios domésticos. • adj doméstico, pertencente à casa ou à família.
n 1 doméstico, criado, servidor. 2 produtos nacionais. • adj 1 doméstico, caseiro, familiar. she has domestic taste / ela é caseira. 2 nacional, do país, interno. 3 designativo do animal útil que vive ou é criado em casa. 4 manso.
1. Ref. à casa, ou à vida familiar (serviços domésticos).
2. Que se cria ou que vive em casa ou perto do homem (animais domésticos)
3. Que se realiza dentro de um país: Aumenta o número de voos domésticos.
4. Que se dedica ao lar e aos afazeres da casa.
5. Empregado contratado para fazer serviços domésticos.
domestic violence - violência doméstica
domestic airport - pequeno aeroporto, para vôos nacionais ou intra-estaduais etc (em contraste aos
aeroportos com grande ou maior infra-estrutura.)
domestic worker - trabalhador domestico (maids, servants -wether live-in or not, au pair, bootle boy, nannies etc), in short
those that performs househould chores around house in a regular way.
Domestic workers perform a variety of household services for an individual or a family, from providing care for children and elderly dependents to cleaning and household maintenance, known as housekeeping. Responsibilities may also include cooking, doing laundry and ironing, food shopping and other household errands. Some domestic workers live within the household where they work.
of or pertaining to the home, the household, household affairs, or the family: domestic pleasures.
devoted to home life or household affairs.
of or pertaining to one's own or a particular country as apart from other countries: domestic trade.
indigenous to or produced or made within one's own country; not foreign; native: domestic goods.
a hired household servant.
something produced or manufactured in one's own country.
domestics, household items made of cloth, as sheets, towels, and tablecloths.
World English Dictionary
1. of or involving the home or family
2. enjoying or accustomed to home or family life
3. (of an animal) bred or kept by man as a pet or for purposes such as the supply of food
4. of, produced in, or involving one's own country or a specific country: domestic and foreign affairs
5. a household servant
6. informal (esp in police use) an incident of violence in the home, esp between a man and a woman
[C16: from Old French domestique, from Latin domesticus belonging to the house, from domus house]
the people of a house collectively; a family including its servants.
of or pertaining to a household: household furniture.
for use in maintaining a home, especially for use in cooking, cleaning, laundering, repairing, etc., in the home: a household bleach.
common or usual; ordinary.
Please read this, it has examples of "household"