Answer:

pharace - a small group of words standing together as a conceptual unit, typically forming a component of a clause.

clause - 1.

a unit of grammatical organization next below the sentence in rank and in traditional grammar said to consist of a subject and predicate.

2.

a particular and separate article, stipulation, or proviso in a treaty, bill, or contract

sentence - a set of words that is complete in itself, typically containing a subject and predicate, conveying a statement, question, exclamation, or command, and consisting of a main clause and sometimes one or more subordinate clauses.