intransitive verb
Definition: To make a sound while swallowing, often because of nervousness or when drinking quickly.
Example: She took a gulp of water after running.
noun
Definition: A large amount of liquid or food that is swallowed at once, or the action of swallowing something quickly.
Example: He took a big gulp of water after running.
transitive verb
Definition: To swallow something quickly and often in large amounts, usually because you are very thirsty or hungry.
Example: He took a big gulp of water after running the marathon.