filtered
filtered — adjective
- filteredpositive
- more filteredcomparative
- most filteredsuperlative
1. passed through a device that removes dirt, solid pieces, or other unwanted subst
passed through a device that removes dirt, solid pieces, or other unwanted substances, making something cleaner or safer to use
The guests drank filtered water from the kitchen tap instead of bottled water.
collocation: filtered water
Mayumi used filtered olive oil for the salad dressing because it had a cleaner taste.
collocation: filtered oil
Filtered air in the hospital ward helped the patients breathe more easily.
Bao prefers filtered coffee because the grounds do not end up in the cup.
- unfiltered
still containing the original impurities or solids
用法筆記
Commonly used with nouns describing consumables (water, coffee, oil, air) where removing impurities is important.
常見錯誤
2. made weaker, softer, or less clear because something partly blocks it — used esp
made weaker, softer, or less clear because something partly blocks it — used especially about light, sound, or images
A filtered light came through the bamboo blinds, casting soft shadows on the floor.
collocation: filtered light
Felix could hear only filtered noise from the street through the double-glazed windows.
The filtered glow of the streetlamps gave the park an almost dreamlike feel.
Through the fence, Yael's photo had a filtered, striped pattern across it.
- direct
describes light or sound that is not blocked or reduced
用法筆記
This sense is very common in descriptive writing about scenery, photography, or architecture. It describes natural or architectural blocking, not digital photo filters.
3. designed or made with a device that removes impurities or unwanted parts from a
designed or made with a device that removes impurities or unwanted parts from a substance passing through it
The filtered cigarette claimed to reduce tar intake, though many doctors doubted it.
collocation: filtered cigarette
Stefan bought a filtered water bottle for hiking trips in the mountains.
The laboratory uses only filtered fume hoods to protect researchers from chemicals.
Haruto installed a filtered shower head to remove chlorine from the water.
- filter-equipped
more explicit but less common in everyday speech
- unfiltered
lacking a filter
用法筆記
This sense describes an object that contains a filter as a built-in feature. Do not confuse with sense 1, which describes a substance that has already passed through a filter.
常見錯誤
filtered — verb
- filteredpresent simple I / you / we / they
- filtereds3rd person singular
- filtereding-ing form
- filterededpast simple
1. to slowly move through something or arrive gradually, especially when talking ab
to slowly move through something or arrive gradually, especially when talking about information, people, or natural forces such as light or sound
News of the company's financial trouble filtered through to the staff on Friday.
pattern: filter through to [someone]
Sunlight filtered into the cellar through a small gap near the ceiling.
pattern: filter into [place]
Tunde's suggestions slowly filtered out during the team discussion over several weeks.
Tourists filter into the old town square each morning after the market opens.
Information about the scholarship filtered down to students through the university newsletter.
- flood
to arrive or spread suddenly and in large amounts
文法句型
filter + through/into/down/out
用法筆記
This sense is always intransitive and normally followed by a preposition (through, into, out, down). It describes slow, often indirect movement — not a direct active action.
常見錯誤
2. to pass a liquid, gas, or light through a device that removes unwanted solids, c
to pass a liquid, gas, or light through a device that removes unwanted solids, chemicals, or specific wavelengths, in order to make it cleaner or to separate its parts
The scientist filtered the muddy water through a cloth to collect the tiny particles.
pattern: filter + object + through [medium]
Yara filtered the cooking oil after frying to remove the small bits of food.
This special glass filters out most of the harmful ultraviolet rays from sunlight.
Brian's face mask filters the air before he enters the dusty construction zone.
The swimming pool pump filters the water every night to keep it clean for swimmers.
文法句型
filter + object
filter + object + from + noun
用法筆記
When the unwanted part is named explicitly, use 'filter + object + out' or 'filter + object + from + source'. The object is the substance being cleaned, not the impurity.
常見錯誤
3. to keep or discard particular pieces of information from a larger set, using a c
to keep or discard particular pieces of information from a larger set, using a computer program or search tool, so that only useful items stay visible
The job website lets you filter results by salary range and location.
pattern: filter + object + by [criterion]
Karim filtered out all emails from unknown senders to reduce spam in his inbox.
pattern: filter out + unwanted items
Faisal filtered the spreadsheet to show only sales from the last quarter.
The search engine filters millions of web pages to show the most useful results first.
Mauricio filtered the customer database by age group for the marketing campaign.
文法句型
filter + object
filter out + unwanted information
filter through + collection
用法筆記
Very common in technology contexts. The preposition 'by' names the criterion used to select items. 'Filter out' is used when the focus is on removing unwanted entries rather than keeping useful ones.