An object, quality, or event whose presence or occurrence indicates the probable presence or occurrence of something else. Dark clouds are a sign of an approaching storm.
A gesture or action used to convey information or instructions. She gave him a sign to be quiet.
A notice on public display that gives information or instructions in a written or symbolic form. The stop sign at the intersection is clearly visible.
A symbol or word used to represent an operation, instruction, or concept in mathematics or music. The plus sign indicates addition in mathematics.
A trace or indication of something, especially a disease or condition. The rash was a sign of an allergic reaction.
Each of the twelve sections of the zodiac, named after its corresponding constellation. She was born in late April, so her sign is Taurus.
A person’s handwritten signature. He put his sign at the bottom of the letter.