Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
There are several subclassifications, including altocumulus castellanus altocumulus lenticularis altocumulus stratiformis altocumulus volutus, all referring to the different shapes the clouds take.