1
a
: the person, thing, or idea indicated, mentioned, or understood from the situation
The books on the table? I haven't read those yet.
b
: the time, action, or event specified
After that I went to bed.
c
: the kind or thing specified as follows
The purest water is that produced by distillation.
d
: one or a group of the indicated kind
That's a cat—quick and agile.
2
a
: the one farther away or less immediately under observation or discussion
Those are maples and these are elms.
b
: another thing
talking about this and that
3
a
—used as a function word after and to indicate emphatic repetition of the idea expressed by a previous word or phraseHe was helpful, and that to an unusual degree.
b
—used as a function word immediately before or after a word group consisting of an auxiliary verb or a form of the verb be preceded by there or a personal pronoun subject to indicate emphatic repetition of the idea expressed by a previous verb or predicate noun or predicate adjectiveIs she capable? She is that.
4
a
: the one : the thing : the kind : something, anything
the truth of that which is true the senses are that whereby we experience the world
b
those plural
: some persons
those who think the time has come
1
a(1)
—used as a function word to introduce a noun clause that is usually the subject or object of a verb or a predicate nominativesaid that he was afraid
(2)
—used as a function word to introduce a subordinate clause that is anticipated by the expletive it occurring as subject of the verbIt is unlikely that he'll be in.
(3)
—used as a function word to introduce a subordinate clause that is joined as complement to a noun or adjectiveWe are certain that this is true.
the fact that you are here
(4)
—used as a function word to introduce a subordinate clause modifying an adverb or adverbial expressionwill go anywhere that he is invited
b
—used as a function word to introduce an exclamatory clause expressing a strong emotion especially of surprise, sorrow, or indignationThat it should come to this!
3
—used as a function word after a subordinating conjunction without modifying its meaningIf that thy bent of love be honorable …—
William Shakespeare
1
a
: being the person, thing, or idea specified, mentioned, or understood
b
: being the one specified
—usually used for emphasisthat rarity among leaders
that brother of yours
2
: the farther away or less immediately under observation or discussion
1
—used as a function word to introduce a restrictive relative clause and to serve as a substitute within that clause for the substantive modified by the clausethe house that Jack built
I'll make a ghost of him that lets me—
William Shakespeare
2
a
: at which : in which : on which : by which : with which : to which
each year that the lectures are given
b
: according to what : to the extent of what
—used after a negativehas never been here that I know of
3
b
obsolete
: the person who
2
: very, extremely
—usually used with the negative… did not take the festival that seriously.—
Eric Goldman
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Merriam-Webster unabridged