Here's a breakdown:
* Foot: The basic unit of rhythm in poetry, consisting of a specific combination of stressed and unstressed syllables.
* Meter: The regular pattern of stressed and unstressed syllables in a line of poetry.
* Tetrameter: A line of poetry containing four feet.
Examples of common tetrameter lines:
* Iambic tetrameter: "The wind is cold, the night is dark." (Each foot consists of an unstressed syllable followed by a stressed syllable.)
* Trochaic tetrameter: "Double, double, toil and trouble." (Each foot consists of a stressed syllable followed by an unstressed syllable.)
Note: The specific type of tetrameter (iambic, trochaic, etc.) depends on the type of foot used in the line.