Meanings refer to the concepts or ideas that words represent. It is the understanding of what a word stands for or represents.
Semantic memory refers to our long-term memory system responsible for storing general knowledge and meanings of words.
Lexicon refers to an individual's mental dictionary or vocabulary, which includes all the words they know and their respective meanings.
Concepts are mental representations that categorize objects, events, or ideas based on their shared characteristics. They help us understand and assign meaning to different words.