Letters are the basic building blocks of language that combine to form words. Words are the smallest units of language that can stand alone and have meaning. Words are formed from combinations of letters and morphemes, the smallest units of meaning. Sentences are combinations of words that express a complete thought through a statement, question, command, or exclamation, with a capital letter at the beginning and ending punctuation.

1. Letter
Word
Sentence
?

2. Letter . . ?
Letters are symbols or characters that are the building blocks of a
language. In English, there are 26 letters from A to Z that are enough
to read and write English language.
Each letter has its own sound that helps
in recognition during conversation.
Writing a language is not possible without
these letters. All letters in English language
have their own names as wells sounds.

3. Word . . ?
Combination or group of some letters as a single unit of language
which means something and can be spoken or written.
A word may consist of a single morpheme or a combination of
morphemes. The branch of linguistics that studies word structures is
called morphology.

4. Morpheme?
The smallest unit of
meaning that a word
can be divided into is
called morpheme.
Ex: Re-play-ed

5. Sentence . . ?
Combination or group of some words that expresses a meaningful
statement, question, command, order, request, advice, suggestion,
desire, wish or invitation is called sentence.
In written English sentence always begins with a capital letter and
ends with a full stop(.), a question mark (?) or an exclamation
mark(!).

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