All the best Definition 1 of 3Pro Tip 1/3Farewell Wish Used when parting or ending a conversation, as a heartfelt wish for good fortune. I'm off to college now, all the best to you! Pro Tip 2/3Future Success Often used to express hope for someone's success in a new venture or endevour. Launching your startup? All the best with it! Pro Tip 3/3Positive Closure Can be used to end a note or message on a positive and uplifting note. Take care and all the best!