This and these are used in different ways when you are referring to people, things, situations, events, or periods of time. They can both be determiners or pronouns.

This, that, these and those are demonstratives. We use this, that, these and those to point to people and things. This and that are singular. These and those are plural. We use them as …

It suggest wrapping pipes with "lagging and pay particular attention to the pipes in cold areas, such as a garage, cellar or those outside your property, as these are the ones most likely to …

Weather Words Can you handle the (barometric) pressure? The meaning of THESE is plural of this.

You use these when you refer to something which you expect the person you are talking to to know about, or when you are checking that you are both thinking of the same person or thing.

Definition of these determiner in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Collins Concise English Dictionary © HarperCollins Publishers:: these /ðiːz/ determiner the form of this used before a plural noun: these men (as pronoun): I don't much care for these 'these' …

For a singular thing, use this. For a plural thing, use these. Examples: I like this phone a lot. (when you’re holding the phone in your hand or pointing to it nearby) Do you like these shoes? (when …

These are the simple rules you have to follow. I have always wanted to own books like these.

This, that, these and those are demonstratives. We use this, that, these and those to point to people and things. This and that are singular. These and those are plural. We use them as …