A group of words or a word making a complete sense is called a Sentence.
A sentence is an expression in natural language. A sentence can include words grouped meaningfully to express a statement, question, exclamation, request, command or suggestion.
Notes
1. A sentence always starts with a capital letter.
Example: My name is Akash.
2. A sentence always ends with
a full stop (.) or
a note of exclamation (!) or
interrogation (?) (question mark).
Example:
Ananda is my friend.
What a lovely scene!
What is your name.
3. The basic parts of a sentence are the subject, the verb, and (often, but not always) the object. The subject is usually a noun–a word that names a person, place, or The verb (or predicate) usually follows the subject and identifies an action or a state of being. An object receives the action and usually follows the verb.