To speak very softly, using breath rather than the vocal cords, especially for secrecy or privacy; also a quiet or secret suggestion or rumor.

Difficult to move one's body, often due to tightness or soreness; rigid or not easily bent; firm in structure.

An unpredictable or close contest where the outcome is uncertain or equally likely to go either way.

Something that blocks your way so that movement or progress is prevented or made more difficult.