How do I check if one of the values in an if statement is true?

I'm trying to make a game where there's an NPC and if you say nice things to it, it will shrink. I want it so that there is multiple words that it will accept. I also want it so that you have to include the word in a message, not have to type out only the exact word. I've made some code for this but it only works if you use the first value, "cool". Can someone help me fix this? Thanks!

game.Players.PlayerAdded:connect(function(player)
		player.Chatted:connect(function(msg)
			if string.match(string.lower(msg), "cool" or "epic" or "rad" or "coolest" or "fan" or "small" or "fun" or "funny") then
			print("OK 3")
			ChatService:Chat(part, "O_O", "White")
			local Humanoid = model.Humanoid
			if Humanoid then
				local HS = Humanoid.HeadScale
				local BDS = Humanoid.BodyDepthScale
				local BWS = Humanoid.BodyWidthScale
				local BHS = Humanoid.BodyHeightScale

				HS.Value = HS.Value - 0.1
				BDS.Value = BDS.Value - 0.1
				BWS.Value = BWS.Value - 0.1
				BHS.Value = BHS.Value - 0.1
				print("Shrunk!")
			end
			end
		end)
	end)

Doing an or statement for each word is very inefficient, a good way to check words is to make an array containing the words and loop through that array checking if the word matches. Example:

local Words = {"cool","epic","rad","coolest","fan","small","fun","funny"} --Words

game.Players.PlayerAdded:connect(function(player)
	player.Chatted:connect(function(msg)
		for _,Word in pairs(Words) do
			if string.match(string.lower(Word),msg) then
				ChatService:Chat(part, "O_O", "White")
				local Humanoid = model.Humanoid
				if Humanoid then
					local HS = Humanoid.HeadScale
					local BDS = Humanoid.BodyDepthScale
					local BWS = Humanoid.BodyWidthScale
					local BHS = Humanoid.BodyHeightScale

					HS.Value = HS.Value - 0.1
					BDS.Value = BDS.Value - 0.1
					BWS.Value = BWS.Value - 0.1
					BHS.Value = BHS.Value - 0.1
					print("Shrunk!")
				end
			end
		end
	end)
end)