treat

treat — verb

1. to act towards someone or handle something depending on your attitude toward the

1.verbtransitiveA2
Definition

to act towards someone or handle something depending on your attitude toward them — for instance, being respectful to a coworker, dismissing news as trivial, or dealing with a situation urgently.

Example

Iker treats all his teammates with respect and kindness even after tough losses.

treat + with + noun (manner)

The police treated the missing child case as their top priority.

treat + as + noun phrase

Common collocations
  • treat fairly
  • treat with respect
  • treat like dirt
  • treat as an equal
  • treat seriously
Synonyms
  • handle

    focuses on managing a situation or object rather than interpersonal behaviour

  • deal with

    more neutral; can be used for tasks, emotions, or people

  • regard

    emphasises the opinion or judgement behind the behaviour, not the action itself

Antonyms
  • mistreat

    the opposite — to treat someone badly or cruelly

Grammar Patterns

treat + noun/pronoun + adverb/prepositional phrase

treat + noun/pronoun + like/as + noun/adjective

passive: be + treated + adverb

Usage Note

Common in passive voice when the manner of treatment is emphasised ('The matter was treated very seriously'). Often paired with adverbs describing the quality of the interaction, or with prepositions 'like', 'as', or 'with'.

Common Mistakes

I treated him as a king.
I treated him like a king.
'treat as' is for roles or official status ('treat as an equal'), while 'treat like' is for comparisons.

2. to try to make a sick or injured person well again using medicine, physical ther

2.verbtransitiveB1
Definition

to try to make a sick or injured person well again using medicine, physical therapy, surgery, or other health-related methods — for instance, a doctor setting a broken leg or a cream soothing a skin rash.

Example

Dr. Lin treated Hannah's broken wrist with a cast and regular check-ups.

treat + injury + with + method

The clinic treats over two hundred patients every single day.

treat + patient (person as direct object)

Common collocations
  • treat a patient
  • treat a disease
  • treat an infection
  • treat for cancer
  • treat with antibiotics
Synonyms
  • heal

    focuses on the successful outcome — becoming healthy again

  • cure

    implies complete elimination of a disease, not just management

  • care for

    broader, includes nursing and comfort beyond medical procedures

Antonyms
  • neglect

    to fail to give medical care to someone who needs it

Grammar Patterns

treat + person + for + condition

treat + condition + with + method/substance

passive: be treated for [condition]

Usage Note

The direct object can be the person receiving care ('treat a patient'), the illness ('treat cancer'), or the body part ('treat a wound'). When specifying the illness, use 'treat someone for [condition]'.

Common Mistakes

The doctor treated for his cold.
The doctor treated him for his cold.
'treat' always needs a direct object before 'for'.

3. to cover the cost of something nice for another person, often as a generous act

3.verbtransitiveA2
Definition

to cover the cost of something nice for another person, often as a generous act or to mark a special event — for instance, paying for a friend's dinner or getting yourself a spa day as a reward.

Example

Omar offered to treat his coworkers to lunch after they finished the big project.

treat + someone + to + meal

Let me treat you to a cup of coffee at the new cafe downstairs.

Common collocations
  • treat to dinner
  • treat to a drink
  • treat yourself
  • treat the family
Synonyms
  • pay for

    more transactional; lacks the generous, celebratory tone of 'treat'

  • take someone out

    phrasal verb; implies going to a restaurant or event together

Grammar Patterns

treat + someone + to + something

treat + yourself + to + something

treat + [group] + to + [food/event]

Usage Note

Always followed by 'to' when specifying what is paid for ('treat someone to lunch'). Never use a direct object without 'to' ('treat someone lunch' is incorrect). Can be used reflexively ('treat yourself') to mean doing something special for yourself.

Common Mistakes

I will treat you a dinner.
I will treat you to a dinner.
The preposition 'to' is required before the thing being paid for.

4. to apply a protective coating or chemical process to surfaces like timber, fabri

4.verbtransitiveB2
Definition

to apply a protective coating or chemical process to surfaces like timber, fabric, and metal to guard them against damage — for instance, sealing fence posts with preservative or making fabric waterproof.

Example

The wooden fence was treated with a special oil to protect it from the rain.

passive: be treated + with + substance + purpose clause

Liang treated the metal surface with an anti-rust coating before painting it.

treat + surface + with + substance

Common collocations
  • treat with chemicals
  • treat wood
  • treat fabric
  • treat against rot
  • specially treated
Synonyms
  • process

    broader; can involve any series of steps, not just applying a substance

  • coat

    specifically means covering a surface with a layer of something

Grammar Patterns

treat + material + with + substance

be treated to + verb (infinitive of purpose)

passive: is treated + adverb/purpose clause

Usage Note

Almost always found in passive voice in technical or instructional writing. The agent is often a chemical substance rather than a person. For the general sense of 'process', this term appears in manufacturing, construction, and chemistry contexts.

Phrasal verbs

treat to

phrasal verb

To pay for something enjoyable for someone as a gift or special occasion.

Maya treated her parents to a fancy dinner last night.

Diego treated himself to a new video game after passing the exam.

Idioms

to behave towards someone in a very unfair and unkind way, showing no respect for them at all.

The old supervisor treated the junior staff like dirt and never listened to their ideas.

No one should have to stay in a job where they are treated like dirt.

To behave very badly toward someone, showing no respect or care.

The manager treats his assistant like dirt every day.

Why does Sara let her boyfriend treat her like dirt?

treat — noun

Word family

  • treatment
    nounB1
  • treating
    verbA2
  • treated
    verbA2
  • treatable
    adjectiveB2
  • mistreat
    verbB2
  • mistreatment
    nounC1
  • treaty
    nounB2

Synonym discussion

Sense: verb/1

Treat is the broadest of these four, covering how you act toward people and how you deal with situations. Handle focuses on managing something practical, often with skill ('She handled the customer complaint well') — but you wouldn't say 'handle someone with respect' the same way you say 'treat someone with respect'. Deal with is more neutral and can apply to tasks, emotions, or people ('He dealt with the paperwork quickly'); it lacks the interpersonal dimension that treat carries. Regard is about opinion rather than action ('She regarded him as a close friend') and is more formal. Behave toward is the closest synonym but is less natural in everyday speech; 'How did they behave toward you?' sounds stiffer than 'How did they treat you?' For learners, treat is the safest choice for most interpersonal contexts, while handle fits practical problems and regard fits intellectual judgements.

Common collocations

Phrases

  • treat with care
  • treat as equal
  • treat like family

Prepositions

Etymology

LatinOld FrenchEnglish

The word 'treat' entered English around the 1200s from Old French 'traitier' (to deal with, handle, discuss), which came from Latin 'tractare' (to drag, handle, manage) — a frequentative form of 'trahere' (to pull, draw). The earliest English uses meant 'to negotiate' or 'to discuss terms,' which is why 'treat' and 'treaty' share a root. The sense of 'pay for someone else's enjoyment' appeared in the 1700s, and the medical sense developed in the 1800s as professional medicine grew.