這個拼法底下其實是2個不同的字，意思沒有關係， 只是長得一樣。下面分開列出來。跳到 professional (player) · in favor of
pro
n, aShort for 'professional' — someone (or something) that does a thing for money and to a high standard, the opposite of doing it just for fun as an amateur.
From the word’s history
'pro' here is a clipping of 'professional', attested from 1866 (noun) and by 1915 as an adjective (e.g. golf's 'pro shop').
這個 pro 是 professional 的縮寫，名詞用法約從 1866 年出現，形容詞用法約在 1915 年（如高爾夫的 pro shop）。它和表示「支持、贊成」的另一個 pro 來自完全不同的源頭，所以分開處理。
Etymonline (etymonline.com/word/pro); Merriam-Webster
A second word, same spelling
pro
prep, nFrom Latin 'pro' meaning 'for / in favour of' — pointing to the side that supports something, the opposite of 'against'.
From the word’s history
From Latin 'pro' = 'in favour of, for'. The 'pros and cons' sense is short for 'pro and contra' (Latin 'pro et contra' = for and against), attested c. 1400.
來自拉丁文 pro（贊成、為了）。pros and cons（優缺點）這個說法是 pro and contra 的縮寫，源自拉丁文 pro et contra（贊成與反對），約在 1400 年出現。和當「職業」講的 pro 是不同源頭的同形字。
Etymonline (etymonline.com/word/pro); Dictionary.com (pros-and-cons)
登入就可以看每一支怎麼連回核心畫面。
原始詞典資料15 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
PROsymbol詞源 2
- 1
human-scienceslinguisticssciencesA theoretical phonologically null pronoun
- 2
Used to indicate personal pronoun in sign language glosses, e.g. PRO.1 or PRO-1 for the first person.
Proname
- 1
A surname from Spanish.
pronoun詞源 1/pɹəʊ/
- 1
An advantage of something, especially when contrasted with its disadvantages (cons).
- What are the pros and cons of buying a car?
- 2
A person who supports a concept or principle.
proprep詞源 1/pɹəʊ/
- 1
In favor of.
- He is pro exercise but against physical exertion, quite a conundrum.
pronoun詞源 2/pɹəʊ/
- 1
A professional sportsman.
- 2
Professional.
- When it comes to DIY, he's a real pro.
proadj詞源 2/pɹəʊ/
- 1
Professional.
- He landed a pro mentorship gig.
pronoun詞源 3/pɹəʊ/
- 1
slangA prostitute.
- 1974, "Fynn" (Sydney Hopkins), Mister God, This Is Anna Millie was one of the dozen or so pros who had a house at the top of the street.
pronoun詞源 4/pɹəʊ/
- 1
archaicslangA proproctor.
pronoun詞源 5/pɹəʊ/
- 1
historicalslangA chemical prophylaxis taken after sex to avoid contracting venereal disease.
這個拼法也被記錄為下列字的變化形：
- pressure retarded osmosis
- patient-reported outcome
- Police Regional Office
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。