Cloud
Definition 1 of 6
Pro Tip 1/2
Weather Indicator
Cloud types help predict weather; 'cumulus' suggests fair weather, while 'nimbus' signals rain. Those cumulus clouds indicate a sunny day ahead.
Pro Tip 2/2
Sky Descriptions
Use different adjectives with 'cloud' to describe the sky, such as 'overcast' for a fully clouded sky. The sky is overcast; I doubt we'll see the sun today.