A vector is the secondary element in a verb-verb compound or compound verb

Vector (spatial), an object defined by both magnitude and direction; in contrast to a scalar, an object with magnitude only

A type of telekinetic force possessed by diclonius in the anime and manga series Elfen Lied

Vector processor, a computer processor which works on arrays of several numbers at once

A one-dimensional array

Vector control, methods for controlling diseases by targeting their vectors

Vector graphics, images defined by geometric primitives as opposed to bitmaps

Vector Supercars, an automobile manufacturer

Viral vector, a virus modified to deliver genetic material into a cell

Vector (Battle Angel Alita), a character in the Battle Angel Alita manga series and OVA

Vector Sigma, the computer in the Transformers universe

Vector (biology), traditionally, an organism that transmits diseases or infections; by extension, any organism that transports foreign living material

Vector-06C, a computer developed in the USSR

Vector Prime

Cloning vector, used in genetic engineering processes

Vectorman, a game for Sega Genesis platform

Vector Magazine is the journal of the British APL Association

Vector Marketing, the marketing arm of Alcas Corporation, the firm that sells Cutco knives

Vector (novel), a 1999 novel by Robin Cook

Vector State Research Center of Virology and Biotechnology

Vector W2, a concept car created by Vector Supercars

Probability vector, a coordinate vector with nonnegative entries summing to one, representing a discrete probability distribution

Vector (band), a 1980s New Wave rock band

Vector DNA, a DNA fragment that carries foreign DNA into a host cell

Vector Limited, a New Zealand gas and electricity supplier

Interrupt vector, the location in memory of an interrupt handling routine

Dope vector, a data structure used to store information about an array

Vector (malware), methods that computer viruses and malware use to propagate themselves (by analogy to biological vectors)

Vector (food), a cereal manufactured by Kellogg's

An element in a vector space, often represented as a coordinate vector

A one-dimensional, directional matrix: a row vector or column vector

Vector (STL), a data type in the C++ Standard Template Library

Vector is the critical journal of the British Science Fiction Association

Vector, a song from Command and Conquer: Red Alert, composed by Frank Klepacki