pro

1 of 7

noun

ˈprō 

plural pros

1

: an argument or evidence in affirmation

an appraisal of the pros and cons

2

: the affirmative side or one holding it

pro

2 of 7

adverb

: on the affirmative side : in affirmation

much has been written pro and con

pro

3 of 7

preposition

: in favor of : for

pro

4 of 7

noun or adjective

: professional

PRO

5 of 7

abbreviation

public relations officer

pro-

6 of 7

prefix (1)

1

a

: earlier than : prior to : before

prothalamion

b

: rudimentary : prot-

pronucleus

c

: precursory

proinsulin

2

a

: located in front of or at the front of : anterior to

procephalic

b

: front : anterior

prothorax

3

: projecting

prognathous

pro-

7 of 7

prefix (2)

1

: taking the place of : substituting for

procathedral

procaine

2

: favoring : supporting : championing

pro-American

Examples of pro in a Sentence

Noun

He is a pro when it comes to household repairs.

She handled that tricky situation like an old pro.

Recent Examples on the Web

Noun

Here’s how a horrific ski accident taught me the value of an insurance pro. —Christopher Elliott, Forbes.com, 24 May 2025

The full cast of celebrities and pros will be announced at a later date. —Lynette Rice, Deadline, 22 May 2025

Adverb

During Monday’s outing, Cardi held Digg’s face and the NFL pro had his arm around the rapper’s shoulders. —Alexandra Del Rosario, Los Angeles Times, 13 May 2025

The design pro recently decorated a Brooklyn primary with Rosa Bernal’s Sevilla print on the walls, custom-upholstered bed, drapery, and vintage accent chairs to create contrast between the city view outside and the warm environment indoors. —Allison Duncan, Vogue, 8 May 2025

Preposition

The backstory: Since bringing in longtime pro Wayne Ferreira as coach and taking his game more seriously, Tiafoe has really transformed his career over the last couple years. —Dan Wolken, USA TODAY, 19 Jan. 2023

That matched the second-highest finish by a Sun Devil, the other coming from current PGA pro Jon Rahm in 2016. —Michelle Gardner, The Arizona Republic, 27 May 2021

Noun or adjective

The card will be presented by Celsius Live Fit Essential Energy and Golden Boy Promotions, who represent Chavez Jr. Vega, a native of Sonora, Mexico, hasn’t been wildly active in her career, with only 10 pro fights in as many years as a pro. —Brian Mazique, Forbes.com, 14 May 2025

That’s a long day of dealing with e-tickets and finger food and scatter market pricing trend chit-chat for media biz pros. —Brian Steinberg, Variety, 13 May 2025

Word History

Etymology

Noun

Middle English, from Latin, preposition, for — more at for

Adverb

pro-

Preposition

Latin

Prefix (1)

New Latin, from Latin, from Greek, before, forward, forth, for, from pro — more at for

Prefix (2)

Latin pro in front of, before, for, forward — more at for

First Known Use

Noun

15th century, in the meaning defined at sense 1

Adverb

15th century, in the meaning defined above

Preposition

1817, in the meaning defined above

Noun Or Adjective

1856, in the meaning defined above

Phrases Containing pro

• all-pro
• pro-am
• pro and con
• pro bono
• pro-choice
• pro-family
• pro forma
• pro forma invoice
• pro-inflammatory
• pro-life
• pro rata
• pro se
• pro shop
• pro-social
• pro tem
• pro tempore
• pro-verb
• quid pro quo
• turn pro

Rhymes for pro

• beau
• beaux
• blow
• boe
• bro
• coe
• crow
• doe
• doh
• dough
• eau
• eaux

Kids Definition

pro

1 of 5 noun

ˈprō 

plural pros

ˈprōz

: an argument or evidence in favor of something

discuss the pros and cons

pro

2 of 5 adverb

: in favor of something

pro

3 of 5 noun or adjective

: professional

pro-

4 of 5 prefix

: located in front of or at the front of

prothorax

pro-

5 of 5 prefix

1

: taking the place of : substituting for

pronoun

2

: favoring : supporting

pro-American

Etymology

Noun

Middle English pro "an argument in favor of something," from Latin pro (preposition) "in favor of, for"

Noun or adjective

a shortened form of professional

Prefix

derived from Greek pro "before, forward"

Prefix

derived from Latin pro "in front of, for"

Medical Definition

Pro

1 of 2 abbreviation

proline; prolyl

PRO

2 of 2 abbreviation

peer review organization