Word: mastermind
Part of speech: Noun
Syllables: mas
ter
mind
Definition: A person responsible for the highest level of planning and execution of a major operation.
Morphemes:
Affix: master
Language: en
PoS: Noun
Meaning: Someone who has control over something or someone.
Affix: mind
Language: en
PoS: Verb
Meaning: To purpose, intend, plan.