(military) Relating to, using, or typical of guerrilla warfare, or its principles of small independent or non-official perpetrators. / (marketing) Relating to, using, or typical of guerrilla marketing.

A fighter in a small group that attacks a larger army by surprise.

plural of guerrilla

A practitioner of guerrilla diplomacy: an individual who seeks to solve a political-diplomatic issue or otherwise bring about change in international relations not merely through channels other than those of traditional diplomacy (e.g., diplomatic missions), but entirely unsponsored by any government and undirected by any government policy.

An alternative approach to international relations characterised by dialoguing and building relationships (with the aim of solving or advocating a solution to a political-diplomatic issue) not merely outside of traditional diplomatic channels (e.g., diplomatic missions), but entirely without government direction or sponsorship (cf. public diplomacy).

Combat using groups of irregular, light, mobile troops within areas occupied by an enemy force, usually through hit-and-run tactics.

The use of television to spread countercultural propaganda.

plural of guerrilla traveler

Someone who travels for travel's sake, with or without objective; someone who spends most time "on the road".

Resembling or characteristic of a guerrilla or guerrilla warfare.