figurative. Of the passions, as love, wrath, etc.; also poetic of a battle: To be fierce, furious; to glow, rage.

intransitive. To burn with the fervour of devotion, excitement, or passion: said of persons and their feelings. to blaze up: to ‘fire up’ in wrath.

figurative. Said of passions, persons under the influence of passion, their words, etc. Also to boil over. Cf. the blood boils at sense 10b.

transferred. said of a feeling, passion, etc. Obsolete.

figurative. Of the passions, etc.: To burn like flames. to flame out: to burst out violently.

To burn with the fervour of emotion or passion. Said of persons and their feelings.