I am not clear with transitive and intransitive verbs

A transitive verb is a verb that denotes an action which passes over from the doer or subject to an object.

Example: The mother fed the baby;

He filled up the form;

They enjoyed the party, etc.

An intransitive verb denotes an action which does not pass over to an object, or which expresses a state or being, such as:

He ran a long distance;

The balloon burst in the sky;

Please keep quiet, etc.

A matter needs to be noted here that most verbs can be used both as transitive and as intransitive verbs. It is, therefore, better to say that a verb is used transitively or intransitively rather than that it is transitive or intransitive.