This is the 68th most frequent French word.
dit
"Dit" means "said" in English.
Here, 'dit' is the past participle of 'dire' used in a compound tense, passé composé, to indicate what someone told in the past.
Il m'a dit qu'il viendra demain.
He told me that he will come tomorrow.
In this case, 'dit' is the present tense of 'dire', indicating an action that happens regularly or is a general truth.
Elle dit toujours la vérité.
She always tells the truth.
Here, 'dit' conveys the meaning of stating or communicating a message, used in the context of a proverb in the present tense.