sanitary

IPA/ˈsænətri/
KK[sˈænɪtˌɛri]IPA/ˈsænəteri/

sanitary — adjective

  • sanitarypositive
  • more sanitarycomparative
  • most sanitarysuperlative

1. relating to the pipes, drains, and treatment systems that carry dirty water and

1.adjectiveB2
Definition

relating to the pipes, drains, and treatment systems that carry dirty water and waste away from buildings so that people stay healthy

Example

The city council spent three billion dollars upgrading its old sanitary sewer system.

collocation: sanitary sewer system

Diego found that the building's sanitary drains were blocked by tree roots after the storm.

Common collocations
  • sanitary sewer
  • sanitary drain
  • sanitary system
  • sanitary landfill
  • sanitary facilities
  • sanitary infrastructure
  • sanitary pipes
Synonyms
  • waste-treatment

    compound adjective, more specific to the processing stage rather than the entire system

  • sewage-related

    narrower focus on human waste specifically; less common as an adjective

Antonyms
  • unsanitary

    describes systems that are poorly maintained or fail to meet health standards

Grammar Patterns

sanitary + noun (sewer, drain, system, landfill, facility, infrastructure)

Usage Note

Typically used attributively before nouns in civil engineering and public health contexts. The noun it modifies is usually infrastructure-related: sewer, drain, system, landfill, facility, or infrastructure. This sense is less common in everyday conversation and more frequent in official reports, building codes, and urban planning documents.

Common Mistakes

The hospital needs to hire more sanitary workers.
The hospital needs to hire more sanitation workers.
sanitary is an adjective describing the system; sanitation (noun) refers to the process or the workers who handle waste removal.

2. free from dirt, germs, and other harmful things; kept clean enough to protect pe

2.adjectiveB1
Definition

free from dirt, germs, and other harmful things; kept clean enough to protect people from illness — for example, a sanitary kitchen in a restaurant, or a sanitary hospital room

Example

All restaurant kitchens must stay sanitary or they risk being shut down by health inspectors.

predicative use: stay sanitary

Jack scrubbed the stainless steel countertops until every surface was sanitary.

Common collocations
  • sanitary conditions
  • sanitary environment
  • sanitary standards
  • sanitary practices
  • stay sanitary
  • keep sanitary
  • remain sanitary
Synonyms
  • hygienic

    very similar in meaning; hygienic often emphasises practices and habits (hand-washing, food safety), while sanitary focuses on the resulting state of cleanliness

  • clean

    broader and more common in everyday speech; does not always carry the health-protection meaning

  • sterile

    stronger meaning: completely free from all microorganisms; used in surgery and laboratories rather than general cleaning

Antonyms
  • unsanitary

    direct opposite: describes conditions that are dirty and likely to cause illness

  • dirty

    more general, everyday antonym; less formal than unsanitary

  • contaminated

    implies the presence of harmful substances or germs, often in food, water, or medical contexts

Grammar Patterns

keep/stay/remain + sanitary

sanitary + condition(s) / environment / standard(s)

Usage Note

Can be used both attributively (sanitary conditions) and predicatively (keep the kitchen sanitary). More formal than clean; preferred in regulations, health inspections, and official documents. For everyday speech (e.g. 'this table is clean'), use clean rather than sanitary, which can sound overly technical.

Common Mistakes

You should sanitary the table before you cook.
You should sanitize the table before you cook.
sanitary is an adjective; sanitize is the correct verb.
This water is sanitary enough to drink.
This water is safe to drink.
sanitary is rarely used for drinking water; use safe or clean instead.

3. describing products that women use to absorb or collect menstrual blood during t

3.adjectiveB2
Definition

describing products that women use to absorb or collect menstrual blood during their monthly period — for example, sanitary pads, sanitary napkins, or sanitary towels

Example

The charity distributes free sanitary pads to girls in communities that cannot afford them.

collocation: sanitary pads

Defne found a wide selection of sanitary products near the pharmacy counter.

collocation: sanitary products

Common collocations
  • sanitary pad
  • sanitary napkin
  • sanitary towel
  • sanitary product
  • sanitary item
  • sanitary supply
Synonyms
  • menstrual

    more direct medical term; used in phrases like menstrual cup, menstrual products, or menstrual hygiene

  • feminine-hygiene

    broader category that includes all personal care products for women; considered slightly old-fashioned by some speakers

Grammar Patterns

sanitary + product/pad/napkin/towel/supply

Usage Note

Attributive only — the noun that follows (pad, napkin, towel, product, supply) carries the main meaning. In Taiwan, the common terms are 衛生棉 (sanitary pad) and 生理用品 (sanitary products / menstrual products). In informal speech, many speakers simply refer to these as pads or period products.

Common Mistakes

She bought some sanitary from the pharmacy.
She bought some sanitary pads from the pharmacy.
sanitary is an adjective; it must be followed by a noun such as pads, napkins, or products.

Word family

Synonym discussion

Sense: adjective/2

All four words describe an absence of dirt or harmful substances, but they differ in scope and context. Clean (CEFR A1) is the broadest and most frequent — it covers any lack of dirt, from a clean shirt to a clean plate. Hygienic (B1) focuses on disease-preventing practices, such as hygienic food handling or hygienic hand-washing. Sanitary (B1) is close to hygienic but leans toward institutional standards — think of health inspections, building codes, and public health regulations. Sterile (B2) is the strictest, meaning completely free from all living microorganisms, which is required in operating rooms and laboratories. For everyday cleaning, use clean. For personal health habits, use hygienic. For official or regulatory contexts, sanitary carries the right formal weight. For example: 'The room looked clean, but the inspector said it was not sanitary enough to pass.'

sanitary ↗hygienic ↗clean ↗sterile ↗

Common collocations

Nouns

Phrases

  • sanitary conditions
  • sanitary system
  • sanitary standards
  • sanitary facilities
  • sanitary products

Etymology

LatinFrenchEnglish

Sanitary entered English in the early 1800s from French sanitaire, which came from Latin sanitas meaning 'health'. The Latin root sanus ('healthy, sound') is also the source of sane and sanity. The word gained wide use during the 19th-century public health movement, when cities began building sewers and clean water systems to prevent disease outbreaks.