Thayer's Greek Lexicon

 1. a gathering of citizens called out from their homes into some
public place, an assembly
  1) an assembly of the people convened at the public place of the
council for the purpose of deliberating
  2) the assembly of the Israelites
  3) any gathering or throng of men assembled by chance,
tumultuously
  4) in a Christian sense
1d1. an assembly of Christians gathered for worship in a
religious meeting
1d2. a company of Christian, or of those who, hoping for
eternal salvation through Jesus Christ, observe their own
religious rites, hold their own religious meetings, and
manage their own affairs, according to regulations
prescribed for the body for order's sake
1d3. those who anywhere, in a city, village, constitute such a
company and are united into one body
1d4. the whole body of Christians scattered throughout the earth
1d5. the assembly of faithful Christians already dead and
received into heaven