arm (EN)
noun, verb

noun “arm”

sg. arm, pl. arms
  1. the part of the human body from the shoulder to the wrist, sometimes including the hand
    He broke his arm during the soccer match and had to wear a cast for six weeks.
  2. a limb or organ used for movement or holding things, found in animals without backbones
    The starfish used its arms to slowly move across the ocean floor.
  3. the part of clothing that covers the human arm
    She noticed a tear in the arm of her jacket after brushing against the sharp fence.
  4. a long, thin part of an object or machine, often one that can move
    The lamp had a flexible arm that could be adjusted to direct light exactly where it was needed.
  5. the part of a chair or similar object designed for resting your arms on
    He leaned back, resting his elbows on the arms of the sofa.
  6. a section or division of an organization
    The research arm of the company is responsible for developing new technologies.
  7. a group of participants in a medical study
    In the clinical study, patients in one arm received the experimental drug, while those in the other arm were given a placebo.
  8. a smaller body of water extending from a larger one
    The small fishing village was nestled in an arm of the sea, providing shelter from the harsh ocean waves.

verb “arm”

arm; he arms; past armed, part. armed; ger. arming
  1. to provide with weapons or protective gear
    Before the battle, the general armed his soldiers with rifles and ammunition.
  2. to equip with necessary tools, knowledge, or power for a specific purpose
    The workshop aimed to arm young entrepreneurs with the necessary tools to start their own businesses.
  3. to prepare a bomb or similar device to explode
    Before leaving the building, the thief armed the explosive device to deter pursuit.