Standard Lemma guide

pro-

prefix · 7 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • prō′-
  • Received-Pronunciation: /ˌpɹəʊ̯-/
  • Canada, General-American: /ˌpɹoʊ̯-/
  • Australian: /ˌpɹəʉ̯-/
  • Australian: [ˌpɹɐʉ̯] some speakers
  • New-Zealand: /ˌpɹɐʉ̯-/
  • Scotland: /ˌpɹo-/
  • India: /ˌpɾoː-/
  • rhymes with -əʊ

1

prefix

Meaning 1

agreeing with; supporting; favouring

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

prefix

Meaning 2

substituting for

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

prefix

Meaning 3

forward movement

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • progress compared to regress

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

prefix

Meaning 4

earlier; prior

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

prefix

Meaning 5

precursor (molecule)

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

prefix

Meaning 6

rudimentary

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

prefix

Meaning 7

in front of

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *per-der.? Proto-Indo-European *per-der.? Proto-Indo-European *pér Proto-Indo-European *-o Proto-Indo-European *próder. Proto-Italic *prō Latin prōder. English pro- Derived from Latin prō (“in favor of, on behalf of”).

Etymology tree Proto-Indo-European *per-der.? Proto-Indo-European *per-der.? Proto-Indo-European *pér Proto-Indo-European *-o Proto-Indo-European *pró Proto-Indo-European *pro- Proto-Italic *pro- Latin prō-lbor. English pro- Learned borrowing from Latin prō- (“forward direction, forward movement”).

Etymology tree Proto-Indo-European *per-der.? Proto-Indo-European *per-der.? Proto-Indo-European *pér Proto-Indo-European *-o Proto-Indo-European *próder. Ancient Greek πρό (pró)der. English pro- Derived from Ancient Greek πρό (pró, “before”).

Across languages

Translations

17 source translations are retained for this English entry.

  • Bulgarian: про- (pro-) — prefix meaning supporting or favouring
  • French: pro- — prefix meaning supporting or favouring
  • Georgian: პრო- (ṗro-) — prefix meaning supporting or favouring
  • Greek: υπερ- (yper-) — prefix meaning supporting or favouring
  • Hebrew: פְּרוֹ־ (p'ro-) — prefix meaning supporting or favouring
  • Malay: pro- — prefix meaning supporting or favouring
  • Māori: pūaroha — prefix meaning supporting or favouring
  • Polish: pro- — prefix meaning supporting or favouring
  • Russian: про- (pro-) — prefix meaning supporting or favouring
  • Spanish: pro- — prefix meaning supporting or favouring
  • Ukrainian: про- (pro-) — prefix meaning supporting or favouring
  • Bulgarian: пред- (pred-) — prefix
  • Czech: před- — prefix
  • Irish: ur- — prefix
  • Polish: przed- — prefix
  • Russian: пред- (pred-) — prefix
  • Ukrainian: перед- (pered-) — prefix