Water is to moisten as spade is to dig. synonym analogy antonym analogy description analogy function analogy

The function of water may be taken to moisten. Similarly, a spade may be used to dig. Therefore, this "water is to moisten and spade is to dig" is an example of a function analogy, as the functions of both water and spade are being considered. Synonym analogies contain synonyms, antonym analogies contain antonyms and description analogies describe one object using the second word.