Sign
Part of speech: verb
Definition: To write one's signature on (a document), thus showing authorship. To give legal consent by writing one's signature. To persuade to sign a contract. To write one's signature somewhere. To give autographs. To communicate using sign language.
Part of speech: noun
Definition: A visible indication. A clearly visible object, generally flat, bearing a short message in words or pictures. A traffic sign. A meaningful gesture. Any of several specialized non-alphabetic symbols. An astrological sign. Positive or negative polarity. A linguistic unit in sign language equivalent to word in spoken languages. sign language in general An omen. A property of the body that indicates a disease and, unlike a symptom, is unlikely to be noticed by the patient.
Example sentence: When you don't manage your life well, you become angry and frustrated as things don't go as intended, and our bad mood is a sign showing we were not able to resolve the conflict.
Polarity
Part of speech: noun
Definition: the separation, alignment or orientation of something into two opposed poleseither of the two extremes of such attributesThe dipole-dipole intermolecular forces between the slightly positively-charged end of one molecule to the negative end of another or the same molecule.