Filter words and deep POV: the list, the exceptions, the rewrites
Filter words are the verbs of perception that stand between your reader and the scene: she saw, he heard, I felt, she realized. Each one inserts the narrating machinery — 'a character is now perceiving this' — where the perception itself should be. Cut the filter and the reader stops watching your character experience the story and starts experiencing it themselves. That's the whole promise of deep POV, and it's mostly a search-and-rewrite job.
The list, and what filters actually do
The usual suspects: saw, watched, noticed, looked, heard, felt, smelled, tasted, sensed, realized, wondered, thought, knew, understood, remembered, decided, seemed, appeared. None of these is a bad word. The problem is positional — when one sits between the POV character and the thing perceived, it reports the perceiving instead of rendering the perception.
Compare: 'She heard footsteps on the stairs' versus 'Footsteps on the stairs.' In close POV, everything on the page is already what she perceives — that's the contract. So 'she heard' adds nothing but distance; it's the camera filming the audience instead of the movie. Multiply that by three hundred pages and the cumulative effect is a story that feels narrated-at rather than lived-in, even when readers can't name why.
Rewrite patterns, before and after
The mechanical fix is almost always the same move: delete the perception verb and promote the perceived thing to the subject of the sentence. A few patterns cover most cases.
Sensation filters — before: 'He felt the cold seep through his jacket.' After: 'The cold seeped through his jacket.' Sight filters — before: 'She saw the door swing open and a man step out.' After: 'The door swung open. A man stepped out.' Cognition filters — before: 'She realized he'd been lying the whole time.' After: 'He'd been lying. The whole time.' Notice that last one: cutting 'realized' doesn't just tighten the line, it lets the sentence rhythm perform the realization — the fragment lands the way the thought lands.
Interiority filters — before: 'He wondered whether she'd read the letter.' After: 'Had she read the letter?' In deep POV, a character's direct questions and judgments can sit on the page as narration, no italics, no 'he thought' tag. That's the deepest version of the technique: the narrator's voice and the character's voice collapse into one.
When filter words are the right call
Zealotry here produces its own damage, so keep the exceptions. Filters are correct when the act of perceiving is the point: 'She heard it before she saw it' is about the sequence of perception — gutting the verbs guts the meaning. 'He watched her pack' says something 'She packed' doesn't: that he stood there, choosing to watch, doing nothing. When the verb carries character, keep the verb.
Filters also do honest work at POV transitions and in distant narration. An omniscient or deliberately cool narrator may want the distance filters create — literary fiction often does. And a sprinkle of 'she thought' can prevent genuine confusion when interiority and dialogue crowd together. The goal isn't zero filters; it's zero unearned filters. As a rough calibration from line-editing practice: in a close-POV manuscript, most filter constructions can go, and the survivors should each be defensible on purpose.
Hunting them in a full manuscript
This is one of the few craft problems that's genuinely searchable. Run your manuscript through a find for the big eight — saw, heard, felt, watched, noticed, realized, wondered, knew — and triage each hit: is the perceiving itself meaningful, or is the verb just standing in front of the scene? Expect the first pass on a first novel to turn up hundreds; that's normal, not a verdict.
Do this pass late — after structure and scene-level revision, alongside your other line work — because there's no point deep-POV-polishing a scene you're about to cut. And if a wholesale rewrite of a passage feels risky, work preview-first: look at the before and after side by side before committing. That's the philosophy Scribegrove's editor is built on — Grove can flag distancing constructions and propose the closer line, but nothing is applied until you've seen it and said yes.
Frequently asked
Are filter words the same as telling instead of showing?
They're a specific, fixable subspecies of it. 'Show don't tell' is a broad principle; filter words are a concrete sentence-level pattern — a perception verb inserted between the POV character and the perceived thing — with a mechanical rewrite: make the perceived thing the subject. Fixing filters won't fix all telling, but it's the highest-yield line edit per minute spent.
Should I avoid filter words in first person too?
Yes — first person is where they're most redundant, since every line is already the narrator's perception. 'I saw the car swerve' loses nothing as 'The car swerved.' The same exceptions apply: keep the filter when the act of perceiving carries meaning ('I watched him go, and did nothing').
This guide is general information for authors, not legal advice. Platform and store policies change — verify the current terms wherever you publish.