alarm cannon
now chiefly historical
noun
A gun fired to signal an alarm or give notice of danger.
Origin
Late 18th century.
- observation sentence
- observation statement
- observation term
- observation ward
- observative
- observator
- observatory
- observe
- observedly
- observer
- observership
- observer's paradox
- obsess
- obsession
- obsessional
- obsessionalism
- obsessionality
- obsessionally
- obsessional neurosis
- obsessional neurotic
- obsessionist
- obsessive
- obsessively
- obsessiveness
- obsessive–compulsive