This document discusses different types of sounds in terms of their manner of articulation. It explains that manner of articulation refers to the movement of air during sound production. It describes stops as sounds that involve a complete blockage of air followed by a release, and continuants as sounds with a continuous airflow. It provides examples of nasal and oral stops as well as continuants. It also discusses aspirated versus unaspirated sounds, fricatives produced with a narrow air passage, affricatives as a combination of a stop and fricative, liquids with minor air obstruction, and glides or semivowels as transition sounds.