From Longman Dictionary of Contemporary Englishspark of interest/excitement/anger etcspark of interest/excitement/anger etcFEEL HAPPY/FRIGHTENED/BORED ETCa small amount of a feeling or quality Rachel looked at her and felt a spark of hope. → spark
Examples from the Corpus
spark of interest/excitement/anger etc• If he showed a spark of interest in them, Maude would be happy for the day.• Despite the quiet session, sparks of excitement could still be found in the market.• But as she looked at him, a tiny spark of anger flared within her.• The unexplainable spark of excitement, at being in his presence again, shocked her.• By the time he was admitted he had lost whatever spark of interest he had felt.