Chance/tʃæns/ Definition 1 of 6Pro Tip 1/2Uncertain Outcome Use 'chance' to express uncertainty about future events, not guaranteed outcomes. She has a fair chance of winning the competition. Pro Tip 2/2Quantifying Probability 'Chance' can be modified to indicate the degree of possibility, like 'slim chance' or 'high chance'. There's a slim chance of him arriving on time.