What does depend mean?
To depend is, at its core, to hang from something — a meaning inherited directly from its Latin root that survives today in two closely related uses. In its most common sense, depend means to place trust or reliance in a person or thing: you depend on a friend's honesty, an engine depends on fuel, a child depends on a parent. In its second sense, the word expresses contingency — one thing depends on another when the outcome of the first is determined by the second, as when plans depend on the weather. This conditional use gives English its famously evasive conversational answer, 'it depends.' Depend is a neutral word suited to both formal and everyday registers, and it anchors a rich family of derivatives including dependent, dependence, dependable, and independent. Its reliability makes it indispensable for describing relationships of need, trust, and causation across nearly every domain of life.
verbTo rely on someone or something for support, help, or a needed outcome; to be contingent on or determined by something else.
- To rely on someone or something with confidence for support, help, or a needed outcome (often 'depend on' or 'depend upon').
- To be conditional on or determined by some other factor; to vary according to circumstances ('it depends').
"Whether we leave tomorrow depends entirely on the weather."
"You can always depend on her to keep a level head in a crisis."
"The success of the harvest depends on rainfall arriving at just the right time."
Every time you say 'it depends,' you're speaking Latin — the word literally means 'to hang from,' as if your decision dangles from a hook of circumstance.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of depend
Depend comes from Latin de- ('down from') combined with pendere ('to hang'), so the original sense was literally 'to hang down from.' The word entered English in the late Middle Ages via Old French dépendre, initially carrying physical and figurative senses of suspension and subordination before settling into its modern meanings of reliance and contingency. It shares its root with a wide family of hanging-and-weighting words, including pendant, pending, pendent, pendulum, pension, and compensate.
Related word forms
How depend is actually used
Depend is almost always used transitively through the prepositions 'on' or 'upon', though bare use occurs in fixed phrases like 'that depends.' The phrase 'it depends' functions as a common conversational hedge. 'Depend upon' carries a slightly more formal tone than 'depend on'.
Easily confused with depend
To defer is to postpone or yield to another's judgment, while to depend is to rely on or be conditioned by something.