DictionaryForumContacts

   English
Google | Forvo | +

 English thesaurus
observation ['ɔbzə'veɪʃ(ə)n] abbr.
abbr. obbo; observ; obsv
abbr., mil. obsn; obsr
mil., logist. The condition of weather and terrain that permits a force to see the friendly, enemy, and neutral personnel and systems, and key aspects of the environment. (FRA)