This is the 11551st most frequent French word.
réchauffer
To heat up again.
In this sentence, 'réchauffer' is employed to mean 'to heat again,' specifically heating the soup that has already been prepared.
Je vais réchauffer la soupe pour le dîner.
I will reheat the soup for dinner.
Here, 'réchauffer' is used metaphorically to indicate bringing warmth or comfort emotionally to someone's heart.
Son discours a réchauffé nos cœurs.
His speech warmed our hearts.
In this context, 'réchauffer' figuratively describes enthusiasm or excitement, implying the idea does not evoke warmth or interest.