Standard Lemma 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
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No pronunciation record was provided for this word.
noun
The period of time a computer has functioned since last requiring a reboot.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
The amount of time, or the proportion of total time, during which some system or machinery is operable.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a period of time when something (as a machine or factory) is functioning and available for use
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: downtime
Broader terms: time period, period of time, period
Narrower terms: 24/7
History
Etymology tree Proto-Indo-European *upó Proto-Germanic *ub Proto-Germanic *upp Proto-West Germanic *upp Old English upp Middle English up English up Proto-Indo-European *deh2-der. Proto-Indo-European *deh2y- Proto-Indo-European *-mṓ Proto-Indo-European *dh2i-mon- Proto-Germanic *tīmô Proto-West Germanic *tīmō Old English tīma Middle English tyme English time English uptime From up (“(computing) functional, working”, adjective) + time.
