Be owned by; be in the possession of.

Dutch: behoren, horen, toebehoren, toehoren

Be suitable or acceptable.

Dutch: aangaan, behoren, betamen, horen, passen

Be in the right place or situation:
— Where do these books belong?.
— Let's put health care where it belongs--under the control of the government.

synonym: go.

Dutch: behoren, horen, thuishoren

Be rightly classified in a class or category.

Be a member, adherent, inhabitant, etc. (of a group, organization, or place).

Dutch: behoren, horen, thuishoren

Be a part or adjunct:
— The uniform looks like it belonged to a museum collection.
— These pages don't belong.

synonym: belong to.

Dutch: behoren, ressorteren, vallen, zijn