Pore over vs. pour over: which phrase is correct?

The short answer

Pore over means to read or study something with close, careful attention, as in she pored over the contract before signing it. Pour over means to physically pour a liquid onto or into something, as in he poured coffee over the ice for a cold brew. The two phrases are pronounced the same way, which is why pored is so often typed as poured, even by confident writers.

• Pore over = study closely
• Pour over = pour a liquid onto something

What pore means on its own

As a standalone word, pore is also a noun meaning a tiny opening in the skin, but the confusable phrase here is the verb pore, meaning to gaze at or read something intently for a long stretch of time. It almost always pairs with the preposition over: researchers pore over data, students pore over notes before an exam, and editors pore over a manuscript line by line. The past tense is pored, not poured.

What pour means on its own

Pour is a much more common verb describing the flow of liquid, or figuratively of anything moving in a steady stream, as in rain poured down all afternoon or fans poured into the stadium. Pour over follows the same logic: you pour a liquid over something, like pouring hot water through a coffee filter, or pouring sauce over pasta. Its past tense is poured.

Why the mix-up happens so often

Pore and pour are homophones in most American accents, so listeners hear no difference between them at all, and that makes the written distinction purely a matter of memorized spelling rather than sound. The mix-up shows up most in the phrase pore over, since pour is by far the more frequent word overall and autocorrect tools sometimes suggest it even when pored is correct. Slowing down and picturing the meaning, close study versus liquid, is the most reliable fix.

Correct and incorrect examples

Because pored and poured sound identical, spell-check will not catch the error, so it helps to test the sentence for a liquid. Say she poured over the budget for hours only if you mean she literally spilled liquid on it; otherwise, the correct choice is pored, as in she pored over the budget for hours.

• Correct: He pored over the map, looking for a shortcut.
• Not: He poured over the map, looking for a shortcut.
• Correct: She poured water over the seedlings.
• Not: She pored water over the seedlings.

Remember it

Connect pore to reading by thinking of a magnifying glass held close to a page, the kind of close focus pore over describes, and connect pour to liquid by picturing a pitcher tipping over a glass. If no liquid appears anywhere in the sentence, the word you want is pored, not poured.

Another quick check is to look for a source and a destination for the liquid, such as pouring water from a kettle into a cup; if you cannot name what is flowing and where it lands, the sentence almost certainly needs pored instead. Practicing with both versions side by side, pored over notes and poured over pancakes, trains the eye to catch the difference at a glance.