In which category does the use of inappropriate words fall?

Error: When a learner can’t master a language, he is vulnerable to making errors. Errors are nothing but grammatically incorrect words, phrases, sentences, or structures. It should be noted that it is different from disorders in such a way that errors can be easily pointed out and corrected at the same time.

Key Points

The few types of errors are explained below:

• Lexical Errors: It is the error that takes place when the author uses a wrong word or phrase under the idea that it is correct. For example, 'Why don't you eat (drink) water?'
• Spelling Error: When there is an error in spelling during writing, it is said to be a spelling error. For example, students generally write receive as recieve.
• Structural Error: Students generally make a structural error while speaking or writing. For example, ‘Since you are struggling’. Here, the sentence demands 'what should be done if you are struggling'.
• Grammatical Error: It happens when grammar rules are not followed. For example, 'He do not like coffee' instead 'He does not like coffee'.

Hence, we conclude that inappropriate word falls under lexical error.