Gal/ɡæl/ Definition 1 of 2Pro Tip 1/3Informal Use Used among friends or peers in casual settings, not in professional or formal contexts. Are any of the gals coming to the beach party? Pro Tip 2/3Female Identification Refers specifically to females, can be used for young women or in a more general sense. That gal over there is the new soccer coach. Pro Tip 3/3Amicable Tone Carries a friendly and casual tone, less formal than 'woman' or 'lady'. She's such a sweet gal, always smiling.