Trust is a firm belief in the reliability, truth, or ability of someone or something.

Practically this means that you believe in someone, you can rely on the person for anything, the person tells you the truth at all times, you believe in the persons abilities and can count on them at all times.

To build trust in a relationship means two individuals are willing to come together to create a relationship where both parties can believe in each other and rely on each other for anything. Also its a relationship that the individuals are willing to be truthful with each other and ready to avail their abilities at all times.
Now, can two individuals come together to build trust in a relationship.
Can two people walk together without agreeing on the direction? Amos 3:3 NLT.
The two individuals in the relationship must agree that they want to build trust and if they do, these are a few ways you may want to consider as you seek to build trust.

• once in a while take turns to ask some questions on your mind concerning the other person.

• Make every effort not to judge the other person and say your answers without fear of being judged. Give intentional responses with no judgment because you are learning about each other and surprises may pop up.

• Talk about the extent to which you want to share information about each other and allow room for good feedback. Feedback is a gift, learn how to give it and receive it. Give feedback by completing the person first for what they did right, before you talk about what they did wrong.

• Decide to be honest with each other. Telling the truth is not always easy but it creates an environment of reliability. Tell the truth about both the good and bad things. So that the other person can vouch for you whenever need be.

• Create transparency by being open about your challenges and strengths. Avoid using the words like private and personal or “it’s my space” to mean the other person is not allowed in that aspect of your life.

• Be willing to clarify when the other person needs more clarity on a matter or does not understand your explanation on a matter.

It takes two intentional individuals to build trust even when it’s been broken already.

Remember trust is built it doesn’t just happen!