noun
plural -aces
[count] a dangerous or possibly harmful person or thing - usually singular
someone who causes trouble or annoyance - usually singular
[noncount] :a dangerous or threatening quality
with menaces
Brit law :with threats :using threatening actions or language
verb
-aces; -aced; -acing
[+ obj] somewhat formal :to threaten harm to (someone or something) - often used as (be) menaced