as meaning and definition

AS noun

Definition of As (noun)

1. a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
   • synonyms: arsenic, atomic number 33
2. a United States territory on the eastern part of the island of Samoa
   • synonyms: American Samoa, Eastern Samoa

AS adverb

Definition of as (adverb)

1. to the same degree (often followed by `as')
   • "they were equally beautiful"; "birds were singing and the child sang as sweetly"; "sang as sweetly as a nightingale"; "he is every bit as mean as she is"
   • synonyms: equally, every bit