¹ duck noun

• any one of many different kinds of birds that swim and have a flat beak, a short neck, a heavy body, short legs, and webbed feet—often used before another noun
• a female duck
• the meat of a duck used as food

² duck verb

• to lower your head or body suddenly to avoid being seen or hit —often + down
• to lower (your head) suddenly
• to avoid (something, such as a punch) by lowering your head or body suddenly