Key: "S:" = Show Synset (semantic) relations, "W:" = Show Word (lexical) relations
Display options for sense: (gloss) "an example sentence"
Noun
S: (n) unknown quantity (a factor in a given situation whose bearing and importance is not apparent) "I don't know what the new man will do; he's still an unknown quantity"
S: (n) unknown, unknown quantity (a variable whose values are solutions of an equation)