Provides the fundamental semantic content of a word

Difference between lexical and grammatical morphemes
In addition to lexical morphemes, we also find grammatical morphemes , known as gramemes . These are the units that vary in a word, and that can express different meanings or relationships, although they do not alter the basic referential meaning. They are not usually autonomous and are subject to grammatical restrictions.
There are also two types:

• 
  Inflectional grammes : gender or number in nouns, determiners, adjectives, etc .: boy, girl.
  

• 
  Derivative grammes : they provide nuance of meaning, mainly at the grammatical level, such as suffixes, prefixes or interfixes: PREheat.
  

We hope that you have understood Lexical morpheme examples.

Morphemes: structure

Morphemes are made up of two separate classes.

• 
  Bases (or roots)
  
• 
  Affixes
  

A morpheme's base is the main root that gives the word its meaning. On the other hand, an affix is a morpheme we can add that changes or modifies the meaning of the base.

'Kind' is the free base morpheme in the word 'kindly'. (kind + -ly)
'-less' is a bound morpheme in the word 'careless'. (Care + -less)
Lexical morphemes
Lexical morphemes are words that give us the main meaning of a sentence, text or conversation. These words can be nouns, adjectives and verbs. Examples of lexical morphemes include:

• 
  house
  
• 
  book
  
• 
  tree
  
• 
  panther
  
• 
  loud
  
• 
  quiet
  
• 
  big
  
• 
  orange
  
• 
  blue
  
• 
  open
  
• 
  run
  
• 
  talk
  

Because we can add new lexical morphemes to a language (new words get added to the dictionary each year!), they are considered an 'open' class of words.