We don't have synonyms for haricot beans yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are haricot bean.
(n) :
(UK) A herbaceous plant from the Americas, Phaseolus vulgaris, the bean of which is eaten as both a green bean and dried, when it is cooked slowly as Boston baked beans.
(n) :
(UK) A herbaceous plant from the Americas, Phaseolus vulgaris, the bean of which is eaten as both a green bean and dried, when it is cooked slowly as Boston baked beans.