1. (noun) knowledge and intellectual ability

• mind

2. (noun) the capacity for rational thought or inference or discrimination

• reason
• understanding

3. (noun) a person who uses the mind creatively

• intellectual

1. (noun) a person who uses the mind creatively

• alchemist
• anomalist
• aphorist
• bel esprit
• bookman
• scholar
• scholarly person
• student
• brain
• brainiac
• einstein
• genius
• mastermind
• clever clogs
• clever dick
• creative thinker
• mind
• thinker
• decipherer
• decoder
• doubter
• sceptic
• skeptic
• egghead
• exponent
• expositor
• expounder
• highbrow
• idealogue
• theoretician
• theoriser
• theorist
• theorizer
• illusionist
• seer
• visionary
• mentor
• wise man
• specifier
• subjectivist
• synthesiser
• synthesist
• synthesizer
• thinker
• wonderer

1. (noun) knowledge and intellectual ability

• intelligence

2. (noun) the capacity for rational thought or inference or discrimination

• faculty
• mental faculty
• module

3. (noun) a person who uses the mind creatively

• individual
• mortal
• person
• somebody
• someone
• soul

1. (noun) knowledge and intellectual ability

• cerebral
• intellectual

2. (noun) the capacity for rational thought or inference or discrimination

• argue
• reason
• conclude
• reason
• reason out
• reason