noeud

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1.
nounmasculine

knot

tie

bow (decorative knot)

Je n'arrive pas à défaire ce noeud de mes lacets.

I can't undo this knot in my shoelace.

Synonyms:boucle
2.
nounmasculine

knot (nautical speed: one nautical mile per hour)

Le bateau file à douze noeuds.

The boat is doing twelve knots.

3.
nounmasculine

crux; central difficulty; tangled problem

Le noeud du problème, c'est le manque d'informations fiables.

The crux of the problem is the lack of reliable information.

Synonyms:point crucial, blocage