horizon (related to bodies of water)
horizontal plane; level surface
tailplane; horizontal stabilizer; horizontal stabiliser
involvement of peer groups; application to similar products; grassroots (organization, development, movement)
Burakumin rights organization (1922-1942)
horizontal specialization
longitudinal magnetic recording
Diggers (17th-century group of English Protestant radicals); True Levellers
horizontal tabulation; HT
Horizontal Redundancy Check
horizontal scanning frequency