Phrase guide
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
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.
phrase
Dealing with something that arises unexpectedly or out of due course; for special business.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
phrase
Used on medical charts by doctors to indicate that actions may be taken at the discretion of nursing staff depending on the patient's condition.
Definition source: English Wiktionary via Wiktextract
Topics: medicine, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
phrase
Used on prescriptions to indicate that the medicines may be taken if and when the patients feel the need.
Definition source: English Wiktionary via Wiktextract
Topics: medicine, pharmacology, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
adverb
according to need (physicians use PRN in writing prescriptions)
Definition source: Princeton WordNet 3.0
Synonyms: as needed, as required, PRN
Antonyms: none provided
History
From the Latin phrase pro (“for”) rē (“thing, matter”) nātā (“born, arisen”): "for what arises".
