Indication/ˌɪndɪˈkeɪʃn/ Definition 1 of 4Pro Tip 1/2Causal Relationship Use 'indication' to suggest one event is evidence for another. The manager's praise was an indication of her outstanding performance. Pro Tip 2/2Not Conclusive 'Indication' doesn't prove anything; it suggests a possibility. Dark clouds are an indication of rain, but it doesn't always rain.