1. The person, thing, or idea indicated, mentioned, or understood from the situation; the time, action, or event specified; the kind or thing specified as follows; one or a group of the indicated kind
2. The one farther away or less immediately under observation or discussion; the former one
3. The one; the thing; the kind; something, anything plural; some persons

1. used as a function word to introduce a noun clause that is usually the subject or object of a verb or a predicate nominative — used as a function word to introduce a subordinate clause that is anticipated by the expletive it occurring as subject of the verb — used as a function word to introduce a subordinate clause that is joined as complement to a noun or adjective — used as a function word to introduce a subordinate clause modifying an adverb or adverbial expression — used as a function word to introduce an exclamatory clause expressing a strong emotion especially of surprise, sorrow, or indignation
2. used as a function word to introduce a subordinate clause expressing purpose or desired result — used as a function word to introduce a subordinate clause expressing a reason or cause — used as a function word to introduce a subordinate clause expressing consequence, result, or effect b — used as a function word to introduce an exclamatory clause expressing a wish
3. — used as a function word after a subordinating conjunction without modifying its meaning

A demonstrative adjective indicating something remote; opposed to

1. To such an extent
2. Very, extremely — usually used with the negative