English Explanatory Dictionary

activity

English dictionary entry

Meanings

noun
  1. The state or quality of being active; activeness.
  2. Something done as an action or a movement.
  3. Something done for pleasure or entertainment, especially one involving movement or an excursion.
  4. The lexical aspect (aktionsart) of verbs or predicates that change over time and have no natural end point.
  5. The number of radioactive decays per unit time. Unit for it: becquerel or curie
  6. The property of substances to react with other substances

Pronunciation

/ækˈtɪv.ɪ.ti/ LL-Q1860 (eng)-Back ache-activity.wav /ækˈtɪv.ə.ti/ [ækˈtɪv.ə.ɾi] [ækˈtɪv.ɪ.ɾi] en-us-activity.ogg

Word forms

activity activities

Etymology

Etymology tree Proto-Indo-European *h₂eǵ- Proto-Indo-European *-eti Proto-Indo-European *h₂éǵeti Proto-Italic *agō Latin agō Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus ▲ Ancient Greek ἐνεργητῐκός (energētĭkós)sl. Latin āctīvus Proto-Indo-European *-teh₂ Proto-Indo-European *-ts Proto-Indo-European *-teh₂ts Proto-Italic *-tāts Latin -tās Latin āctīvitāsder. Middle French activitébor. English activity From Middle French activité, from Latin activitas. Equivalent to active + -ity.

Synonyms

activity doings endeavor enterprise pursuance pursuit undertaking venture

Antonyms

rest passivity

Related words

active doer occurrence

Derived words

activities of daily living activity book activity group psychotherapy activity stream activity theory activity trap autoactivity beehive of activity bioactivity catalytic activity coactivity counteractivity crifanac cyberactivity cytoactivity dark-activity displacement activity electroactivity extravehicular activity fanac funtivity hectivity hive of activity hyperactivity hypoactivity ichnoactivity immunoactivity inactivity interactivity mechanoactivity microactivity minac multiactivity myoactivity neuroactivity nonactivity normoactivity optical activity overactivity pharmacoactivity photoactivity piezoactivity preactivity pulseless electrical activity radioactivity Raman optical activity role activity diagram self-activity seroactivity snacktivity specific activity structure-activity relationship subactivity superactivity surrogate activity thermoactivity ultrahazardous activity underactivity vacuum activity vasoactivity
This entry uses open data from Wiktionary (CC BY-SA/GFDL). Word forms are used for search and are not indexed as separate pages.
Back to search All on A Russian dictionary Dahl dictionary