A necessary commodity, a staple requirement. / An elementary building block, e.g. a fundamental piece of knowledge. / (military) Basic training.

(informal, idiomatic) Falling over in a jumbled heap.

(Britain, derogatory) In skinhead culture the act of physical or verbal attacks by non-Asians against people originating from the Indian subcontinent.

Any of a family of third-generation programming languages (c.1964 on).

(attributive) Initialism of Brazil, South Africa, India and China.

Initialism of British American Security Information Council.

The net balance of the combination of the current account and the capital account in a balance of payments.

Non-Oxford British English standard spelling of bastardize.

To claim or demonstrate that someone is a bastard, or illegitimate. / To reduce from a higher to a lower state, such as by removing refined elements or introducing debased elements; to debase.

A line that is a base for measurement or for construction. / A datum used as the basis for calculation or for comparison. / (typography) A line used as the basis for the alignment of glyphs.