Place of Articulation

It describes the point at which the articulators actually touch or refers to which articulators are involved in the particular sound.

          i.      Bilabials: In English these are /b/, /p/, /m/ and /w/. Bilabials are produced by contact of the upper and lower lips

         ii.      Labio-dental: In English these are /f/ and /v/. 
                 A labio-dental consonant is one that is produced by the lower lip contacting the upper front teeth.

         iii.      Lingua-Dentals: In English these are /θ/ and /ð/. 
                   Dentals or a lingua-dental consonant is produced with the tongue contacting the teeth.

         iv.      Lingua-Alveolar refers to a consonant produced with the tongue contacting the upper alveolar ridge. 
                  These are /t/, /d/, /n/, /s/, /z/, /l/ and /r/, /tʃ/, /ʒ/ and /dʒ/.

         v.      Lingua-Palatal consonant is produced with the tongue contacting the hard palate: These are/ ᶴ/, /ᶾ/, /r/, /j/

         vi.    Lingua-Velar refers to a consonant produced with the tongue contacting the velum: 
                  In English there are /k/, /g/ and /ᵑ/.

        vii.   Glottal is produced by completely or partially constricting the glottis.   
                There is only one English glottal sound, /h/. (Aitchison: 1992)