Incumbent ( adjective , noun )

(As an adjective)

Incumbent ( adjective )

1. Holding an official position or office.
2. Holding a particular office or position at the present time.
3. Being a necessary or required responsibility or duty.

Origin:

Late middle english (as a noun denoting an officeholder): from latin incumbens, incumbente, from incumbere "lean on, lie heavy", from in- "on" + a verb related to cumbe "cushion".

Examples:

1. The incumbent mayor is running for re-election.
2. The incumbent president has been in office for two terms.
3. It is incumbent on all citizens to vote in elections.

(As a noun)

Incumbent ( noun )

1. Holding an official position or office.
2. Holding a particular office or position at the present time.
3. Being a necessary or required responsibility or duty.

Origin:

Late middle english (as a noun denoting an officeholder): from latin incumbens, incumbente, from incumbere "lean on, lie heavy", from in- "on" + a verb related to cumbe "cushion".

Examples:

1. The incumbent mayor is running for re-election.
2. The incumbent president has been in office for two terms.
3. It is incumbent on all citizens to vote in elections.