WordNet: horizontal

parallel to or in the plane of the horizon or a base line; "a horizontal surface"

• attribute orientation

• similar to crosswise

• similar to flat

• similar to level

• similar to naiant, swimming

horizontal

• (englanti) vertical (antonym)

• (englanti) inclined (antonym)

• (englanti) horizontality (derivationally related)

• (englanti) horizontal (derivationally related)
• (suomi) vaakasuora (synonyymi)