It's too cold to get out of bed.
I had to wait an hour in this cold for the bus.
I’m going to Hawaii not only to escape the cold, but to see my family.
This is a single kanji with an い on the end, meaning you know it's probably an adjective. What's the adjective form of cold? It's cold.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading which you learned with the kanji (Samurai (さむ)). Remember?