Trimeter
Quick answer: Trimeter is a verse line of three metrical feet, the partner of tetrameter in ballad metre. Learn how it scans, where to find it and how to use it.
Trimeter is a line of verse made up of three metrical feet, which means three main beats per line. In its most common English form, iambic trimeter, the line runs da-DUM da-DUM da-DUM, six syllables in all. The measure sits in a sweet spot: long enough to hold a full thought, short enough to keep a poem light on its feet.
Most readers absorb trimeter without knowing its name, because it is half of the ballad stanza. Hymns, folk songs and countless quatrains alternate four-beat and three-beat lines, and that shorter line is trimeter doing quiet work, creating the pause and lift that makes ballad metre so singable. On its own, trimeter also carries lullabies, epigrams and poems of stark simplicity.
How It Works
Three feet, three stresses. An original iambic trimeter line: 'The rain has filled the lane.' Three beats fall on rain, filled and lane. Trochaic trimeter flips the pattern: 'Silver, softly, falling.' The three-beat line has a natural incompleteness to the ear, which is why it pairs so well with tetrameter; the four-beat line opens, the three-beat line answers and seems to hold a silent fourth beat, a rest, like a bar of music with a pause at the end.
Where You Will See It
Emily Dickinson built most of her poems on common metre, alternating iambic tetrameter with iambic trimeter, and her dashes often land where that silent beat would fall. Theodore Roethke's 'My Papa's Waltz' (1948) runs on iambic trimeter throughout, its three-beat lines mimicking waltz time; describe it to a class and someone always hears the stumble in the rhythm. Border ballads, hymnals and nursery rhyme collections are full of trimeter halves, and W. B. Yeats used trimeter in several late poems for its bare, incantatory force.
How to Use It in Your Own Poems
Try pure trimeter when you want a poem that feels distilled, almost skeletal, and pair it with tetrameter when you want song. Since each line holds only three beats, place your strongest word on the final stress, where the ear waits. The metre rewards plain diction; ornate words swallow whole lines. If you write a trimeter ballad, test it by singing it to any folk tune, and if it will not sing, a foot has gone wrong somewhere. A well-tuned trimeter poem, spare but musical, tends to impress readers who score for structure and rhythm, as entries to Writory's monthly contest are.
What poets can take from this
- Put the line's most important word on the third and final beat.
- Alternate trimeter with tetrameter to get instant ballad music.
- Keep diction plain; a three-beat line has no room for showing off.
- Use the line's built-in pause, the missing fourth beat, as expressive silence.
- Sing drafts to a familiar tune to expose broken feet quickly.
Try it yourself
Write a poem entirely in iambic trimeter about a repeated household ritual, such as locking up at night, and let the short lines make the routine feel like a ceremony.
Questions
What is an example of trimeter?
Theodore Roethke's 'My Papa's Waltz' is written in iambic trimeter, three beats per line. The shorter lines of ballad and hymn stanzas, including most of Emily Dickinson's second and fourth lines, are also trimeter.
How many syllables are in a trimeter line?
Iambic or trochaic trimeter has six syllables, while anapestic or dactylic trimeter has nine. The defining feature is three metrical feet, so three main stresses, rather than a fixed syllable count.
By the Writory editorial team, reviewed by working poets. Updated July 2026.
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