'Decided' is a past form of the word 'decided. 'Decided' can be used as a verb to mean to come to a conclusion or determination on something after careful consideration.
1. 'We decided to take a break from the project and come back to it tomorrow.'
2. 'The committee decided to postpone the meeting until next week.'
3. 'My family decided to go to the beach for our vacation.'
When used as a verb, it's important to remember that 'decided' is usually followed by the infinitive form of a verb ('decided to take a break,' 'decided to postpone,' etc.).