that

Meanings

1. 1
   conj

   Used to introduce a clause stating what someone says, thinks, or believes.

   He told me that the book is a good read.

2. 2
   conj

   Used after words like so or such to introduce a result or effect.

   The noise was so loud that she woke up.

3. 3
   conj

   Used to introduce a clause after an adjective such as sure, glad, or afraid.

   I'm sure that you are right.

From Middle English that, from Old English þæt (“the, that”, neuter definite article and relative pronoun), from Proto-West Germanic *þat, from Proto-Germanic *þat. Cognate to Scots that, Saterland Frisian dät, West Frisian dat, Dutch dat, Low German dat and datt, German dass and das, Danish det, Swedish det, Icelandic það, Gothic 𐌸𐌰𐍄𐌰 (þata). Further from Proto-Indo-European *tód; compare Ancient Greek τό (tó), Sanskrit तद् (tád), Waigali ta, Lithuanian tai̇̃, Polish to.

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