1. [ verb ] form an arch or curve
Synonyms: curve arc

"her back arches" "her hips curve nicely"

Related terms: bend camber curvature bow curvature
2. [ adjective ] (of persons) highest in rank or authority or office
Synonyms: top chief head boss

"his arch rival" "the boss man" "the chief executive" "head librarian" "top administrators"

Related terms: important
3. [ noun ] (anatomy,zoology) a curved bony structure supporting or enclosing organs (especially arches of the feet)
Related terms: skeletal_structure instep shoulder_girdle hemal_arch neural_arch metatarsal_arch
4. [ noun ] a curved shape in the vertical plane that spans an opening
Related terms: curve
5. [ adjective ] (used of behavior or attitude) characteristic of those who treat others with condescension
Synonyms: condescending patronizing patronising
Related terms: superior
6. [ noun ] (architecture) a passageway under an arch
Synonyms: archway
Related terms: entrance wall
7. [ adjective ] expert in skulduggery

"an arch criminal"

Related terms: skilled
8. [ noun ] Last name, frequency rank in the U.S. is 20407
9. [ noun ] (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it
Related terms: structure trimmer_arch triumphal_arch rampant_arch segmental_arch corbel_arch flat_arch abutment_arch broken_arch pointed_arch proscenium_arch camber_arch rowlock_arch round_arch safety_arch scoinson_arch shouldered_arch skeen_arch skew_arch pier_arch squinch Tudor_arch bridge aqueduct arcade springer voussoir keystone architecture
Similar spelling:   arc