Lemon – le citron

(Pronounced seet-rohn (but you barely pronounce the 'n'))

To remember that Lemon is pronounced seet-rohn (citron) in French, use the following mnemonic:

The lemon drove a Citroen (citron).

Citron is masculine, so it's le citron. Imagine the early learner taking a bite out of a lemon and pulling a face.