us

The word “us” means the object form of "we" — used to refer to the speaker together with one or more other people. In plain terms, the word you use for "me and others" whenever "we" isn't grammatically the right form — for example, as the object of a verb ("help us") or after a preposition ("with us").

“Us” is pronounced uhs (/əs/ in IPA).

Here is “us” used in a sentence: “She invited us to dinner on Saturday.”

“Us” is a pronoun.

The word “us” comes from Latin. From Old English ūs, the dative/accusative form of "we," going back to a very old Indo-European root shared with Latin nōs and German uns.

“Us” is a very common word in modern English, usually learned at around the A1 level.

We is the subject form, used when the group performs the action, as in 'We won the game.' Us is the object form, used when the group receives the action, as in 'They invited us.' A quick check: if you could swap in 'they' use 'we'; if 'them,' use 'us.'

'The teacher gave us extra time.' Here us is the object receiving the extra time. Other examples include 'Come with us,' after the preposition 'with,' and 'She helped us move,' where us is the group affected by the action of helping.