Tweeondereenkap

Twee onder een kap is a Dutch idiom describing two people who share the same residence, typically a couple living together without formal marriage. The expression relies on the image of two individuals sharing a single cap under one roof, highlighting domestic cohabitation and shared space and resources. While widely understood in Dutch-speaking regions, the phrase is most commonly encountered in informal speech, media, and discussions about housing, family life, or social trends. It is related to, but distinct from, more formal notions of cohabitation or marriage.

In usage, the term emphasizes the arrangement of living together rather than legal status. It can describe heterosexual or same-sex couples, roommates who are more than mere housemates, or other pairs sharing a household for economic or personal reasons. The phrase is often employed in journalism, sociological commentary, and literature to illustrate common living arrangements, costs, and everyday realities of sharing a home.

Origin and scope of the idiom are somewhat informal and diffuse; it is a cultural expression rather than a legal category. It does not itself confer any legal rights or obligations, though it may be discussed in contexts addressing tenancy, housing policy, or family demographics. See also: samenwonen (cohabitation), twee onder één dak (two under one roof), and broader discussions of domestic arrangements.