Take something on trust
To accept something without questioning or doubting it.

Trust your instincts
To rely on your intuition or gut feelings.

Trust is earned, not given
Trust must be built over time and through actions, not simply given freely.

In someone’s good books
To be in someone's favor or have their trust.

A leap of faith
To trust in something without proof or certainty.

Put your trust in someone
To rely on or have confidence in someone.

Trust is a two-way street
Both parties must trust each other for a relationship to work.

The benefit of the doubt
To choose to believe someone’s word or intentions despite doubts.

Trust your gut
To follow your intuition when making a decision.

Trust falls
A trust-building exercise where a person falls backward, trusting someone to catch them.

A trusted ally
A person who is reliable and trustworthy.

Betray someone’s trust
To violate someone’s confidence or belief in you.

Place your trust in someone
To rely on someone completely.

Trust issues
Difficulty in trusting others due to past experiences.

Build trust
To develop a reliable and trustworthy relationship.

A trustworthy source
A reliable person or entity from whom information can be trusted.

Trust someone implicitly
To trust someone completely without any doubt.

Trustworthiness
The quality of being reliable and deserving of trust.

Trust your judgment
To have confidence in your own ability to make decisions.

To put one’s trust in a stranger
To have faith in someone you don’t know well.