SAT word list

That is signals a clarification or definition, explicitly stating or explaining what has just been introduced or implied. It functions to make explicit the logical equivalence or identity between two ideas, often to prevent ambiguity or to restate a concept in clearer, more precise terms. Use it when you need to define, rephrase, or unpack a previous statement in a formal or analytical context.

Definition Sentence

The policy aims to reduce carbon emissions; that is, it requires industries to limit their use of fossil fuels.

Also in other words · what this means is · to put it simply · namely · specifically