grammarian grammarian /ɡrəˈmɛəriən/

noun

1. () A linguist who specializes in the study of grammar and syntax  ( syntactician , grammarian )
   a linguist who specializes in the study of grammar and syntax
   
   

 riveting machine riveting machine /ˈrɪvɪtɪŋ məˈʃiːn/

noun

1. A machine for driving rivets  ( riveter , riveting machine , rivetter )
   a machine for driving rivets
   
   

 mute mute /ˈmjuːt/

adjective

1. () Expressed without speech  ( tongueless , wordless , unspoken , mute )
   expressed without speech
    A mute appeal
   a mute appeal
    A silent curse
   a silent curse
    Best grief is tongueless
   best grief is tongueless
    The words stopped at her lips unsounded
   the words stopped at her lips unsounded
    Unspoken grief
   unspoken grief
    Choking exasperation and wordless shame
   choking exasperation and wordless shame
   
2. Unable to speak because of hereditary deafness  ( dumb , mute , silent )
   unable to speak because of hereditary deafness
   

noun

1. A device used to soften the tone of a musical instrument  ( mute )
   a device used to soften the tone of a musical instrument
    The trumpeter used a mute to produce a softer, more mellow sound.
   The trumpeter used a mute to produce a softer, more mellow sound.
   
   
2. A deaf person who is unable to speak  ( deaf-and-dumb person , deaf-mute , mute )
   a deaf person who is unable to speak
   

verb

1. Deaden (a sound or noise), especially by wrapping  ( damp , dampen , dull , muffle , mute , tone down )
   deaden (a sound or noise), especially by wrapping
   

 vena jugularis vena jugularis /ˈviːnə dʒʊˈɡjʊlərɪs/

noun

1. Veins in the neck that return blood from the head  ( jugular , jugular vein , vena jugularis )
   veins in the neck that return blood from the head