Relation of Semantic in literal and figurative context

When studying Semantic meaning, I got confused about the interpretation of Semantic in such a sentence:

You are as fat as a pig

In such sentences, how should I interpret the Semantic meaning:

As: “You are very fat” or simply “You are as fat as a pig” ?

I think, in my interpretation, semantics opposes to literality.

Answer

To expand my comment, semantics is simply the meaning of words:

the branch of linguistics and logic concerned with meaning. The two main areas are logical semantics, concerned with matters such as sense and reference and presupposition and implication, and lexical semantics, concerned with the analysis of word meanings and relations between them. Source

See this pdf.

Not everything in English is literal – consider humour, irony, sarcasm, personification, similes, and metaphors.

A simile (like your example) is:

a figure of speech involving the comparison of one thing with another thing of a different kind, used to make a description more emphatic or vivid (e.g. as brave as a lion). Source

In your example ‘You are as fat as a pig‘ means ‘you are very fat’, so fat that you resemble a pig. See https://idioms.thefreedictionary.com/fat+as+a+pig.

Attribution
Source : Link , Question Author : Davyd , Answer Author : marcellothearcane

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