English Reference
Noun

tack

n. C / U
C1 Advanced US /ˈtæk/ UK /tˈæk/ tack UK spelling tacked, tacks Chemistry Law Nautical

n.a way of doing something or a direction you take to reach a goal. It is often used when you change your plan to try a different method.

n.a course of action or a specific approach to a situation, often one that differs from a previous strategy. In a nautical context, it refers to the direction of a ship relative to the trim of its sails.


SIMPLE

The government decided to try a different tack to lower inflation.

CONTEXTUAL

When the initial negotiations failed, the legal team decided to change tack and focus on a settlement instead.

COMPLEX

Realizing that aggressive questioning was yielding no results, the detective changed tack, adopting a more sympathetic tone to encourage the witness to speak freely.

Usage

Commonly used in the idiomatic phrase 'to change tack'.

Pitfall
change tactchange tack

Learners often confuse 'tack' (a direction or course) with 'tact' (sensitivity in social situations) in this idiom.

Colin from Accounts’ Patrick Brammall is totally changing tack with this intense drama about a one-time cop whose three-year-old daughter Mags disappeared more than a decade ago.

The Guardian· 28 Aug 2026

Some researchers think that policymakers and researchers should change tack altogether.

Smithsonian Magazine· 17 Aug 2026

Etymology 1

From Middle English tak, takke (“hook; staple; nail”), from Old Northern French taque (“nail, pin, peg”), from Frankish takkō, from Proto-Germanic takkô (“tip; point; protrusion; prong; tine; jag; spike; twig”), of unknown origin, but possibly from Proto-Indo-European dHgʰ-n-, from the root déHgʰ- (“to pinch; to tear, rip, fray”). Cognate with Saterland Frisian Takke (“bough; branch; twig”), West Frisian takke (“branch”), tûk (“branch, smart, sharp”), Dutch tak (“twig; branch; limb”), German Zacke (“jag; prong; spike; tooth; peak”).

Etymology 2

From Middle English takken (“to attach; nail”), from the noun (see above).

Etymology 3

From an old or dialectal form of French tache. See techy. Doublet of tache.

Etymology 4

Back-formation from tacky.

Etymology 5

From Middle English tak, take (“fee, tax (on livestock)”), from Old Norse tak, taka (“a taking, seizure; revenue”), from Old Norse taka (“to take”). Cognate with Scots tack.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin gem-pro *takkô
Level C1 · Advanced
Frequency Frequent
Updated