seeking a word each for the following 2 definitions

definition 1: "Using the same word to refer to many different things"
definition 2: "Using a word with a specifically understood meaning to refer to something with a different meaning."

anyone?

not-knowing ✹ 🍕-fan ✹ productive discomfort + idk ✹ Marseille / Singapore / Auvergne ✹ The Uncertainty Mindset (2020) ✹ now: vaughntan.org/now-ish

actually, here are the updated 2 definitions for which i'm looking for words

definition 1: "Using one word with a specific meaning to refer to many different things with different meanings"
definition 2: "Using one word with a specific meaning to refer to something with a specific different meaning."

anyone?

ChatGPT says:

Definition 1: The term you are looking for is "polysemy." Polysemy refers to the phenomenon where a single word has multiple related but distinct meanings.

👇🏽

co-founder, terminally ochain dad & spouse, building products on frontier solutions w frontier people.

lesgreys.com

Definition of 2: The term you are looking for is "metonymy." Metonymy is a figure of speech in which a word is used to represent something closely associated with it, but not necessarily a part of it. It involves using one word with a specific meaning to refer to something else that has a specific, different meaning.

ha yes some people on twitter suggested too. 

i think polysemy does not cover cases where the single word has multiple meanings which are internally in conflict with each other.

agh

and metonymy doesn't work either, for a related reason