something (as property) held by one party (the trustee) for the benefit of another (the beneficiary)
"he is the beneficiary of a generous trust set up by his father"
the trait of believing in the honesty and reliability of others
"the experience destroyed his trust and personal dignity"
a consortium of independent organizations formed to limit competition by controlling the production and distribution of a product or service
"they set up the trust in the hope of gaining a monopoly"
Confidence in or reliance on some person or quality.
"After seeing how carefully she handled the project, I finally learned to trust her judgment completely."
In plain English: Trust is when you believe someone will do what they say without checking on them first.
"People put their trust in the company to handle their data securely."
allow without fear
"She felt safe enough to trust her life savings to a stranger she had just met online."
To place confidence in, to rely on, to confide in.
"She decided to trust her instincts and take a different route home when she noticed the streetlights flickering out of sequence."
In plain English: To trust someone means to believe they will do what they say without doubting them.
"You should trust your friend to keep your secret."
Usage: Use trust when you believe someone will act reliably or keep their promises, such as trusting a friend with a secret. It often pairs directly with an object without needing the preposition "in," unlike similar phrases like "rely on."
Secure, safe.
"The old lighthouse stood as a trust against the raging storm on the horizon."
In plain English: Trust as an adjective means something is reliable and can be depended on to work correctly.
"The company has no reason to trust the new manager with sensitive data."
The word trust likely originated as an unattested Old English form rather than being borrowed from Old Norse. It ultimately derives from a Proto-Germanic root meaning "to be firm or solid."