express

I UK [ɪkˈspres] / US verb [transitive]
Word forms "express":
present tense I/you/we/they express he/she/it expresses present participle expressing past tense expressed past participle expressed
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1)

a) to tell someone about a feeling, opinion, or aim by speaking or writing about it

thoughts that he could not clearly express in words

His teachers expressed concern about his progress at school.

The government has reportedly expressed an interest in the scheme.

I would like to express my thanks to my parents for their support.

The opinions expressed in this book are purely my own.

b) used about a letter, book, or other piece of writing

a poem expressing grief at the death of a friend

2) to show a feeling on your face, or to give information by your behaviour

Her eyes expressed total shock.

The chairperson expressed agreement with a slight nod.

3) to show a quantity or problem in a particular way, especially in mathematics

Dalton's Law can be expressed mathematically.

express something as something:

A ratio can be expressed as a percentage.

4) mainly American to send something using a service that will deliver it very quickly

I'll express those documents to you.

5) formal to force a liquid out of something

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- express yourself

- something expresses itself

II UK [ɪkˈspres] / US adjective [only before noun] *

1)

a) formal very clear, so that there can be no mistake about what is intended

Against the woman's express wishes, the media publicized her story.

express permission/consent:

You must not leave this house without my express permission.

b) deliberate

You came here with the express purpose of causing trouble.

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Collocations:
Nouns frequently used with express
▪  agreement, consent, order, permission, wish

2)

a) an express train, bus etc makes a particular journey more quickly than ordinary trains, buses etc

b) an express service delivers letters or parcels more quickly than the ordinary service

a parcel sent by express post

an express delivery

III UK [ɪkˈspres] / US noun
Word forms "express":
singular express plural expresses

1) [countable] a train, bus etc that makes a particular journey more quickly than ordinary trains, buses etc

the London to Oxford express

2) [uncountable] a service that delivers letters or parcels more quickly than the ordinary service

Make sure you send it by express.

IV UK [ɪkˈspres] / US adverb

using a service that delivers letters or parcels more quickly than the ordinary service

It came express.