Express 'without doing ~' or 'without ~ing'.
Long explanation:
The ~がらないで grammar point is used to express the idea of 'without doing something' or 'without ~ing' in English. It is formed by attaching the ない-form of the verb stem and adding で (de) to the end of the verb. This is used for expressing when an action is not taken or avoided, without creating a negative impact on the main action.