expertise

As nouns the difference between professional and expertise

is that professional is a person who belongs to a profession while expertise is great skill or knowledge in a particular field or hobby.

As an adjective professional

is of, pertaining to, or in accordance with the (usually high) standards of a profession.

As a noun expertise

is great skill or knowledge in a particular field or hobby.

As a verb specialize is

to mention specially; to particularize.

As a verb expertise

is .

As a noun facility is

the fact of being easy, or easily done; absence of difficulty, simplicity.

As a noun domain

is domain (dns domain name).

As a verb expertise is

.

As a verb expertise

is .

As a noun inexpertness is

want of expertise or skill.

As a verb expertise

is .

As a noun technogeek is

(informal) a geek with expertise in technology, especially computers.

As a verb expertise

is .

As a noun inexpertise is

a lack of expertise.

As a verb expertise

is .

As a noun craftspersonship is

the body of activities, skills, techniques, knowledge, and expertise pertinent to (a) particular craft(s).

As a verb expertise

is .

As a noun craftswomanship is

the body of skills, techniques, and expertise of (a) feminine craft(s).