Term: tightening: the act of making something tighter
Broader: change: the action of changing something | Unrelated: reversionary annuity: an annuity payable to one person in the event that someone else is unable to receive it
Broader: change: the action of changing something | Unrelated: thallophyte: any of a group of cryptogamic organisms consisting principally of a thallus and thus showing no differentiation into stem and root and leaf
Broader: change: the action of changing something | Unrelated: tragedian: a writer (especially a playwright) who writes tragedies
Broader: change: the action of changing something | Unrelated: spermatid: an immature gamete produced by a spermatocyte; develops into a spermatozoon
Broader: change: the action of changing something | Unrelated: ovary: (vertebrates) one of usually two organs that produce ova and secrete estrogen and progesterone
Broader: change: the action of changing something | Unrelated: fugacity: the lack of enduring qualities (used chiefly of plant parts)
Broader: change: the action of changing something | Unrelated: attorney general: the position of the head of the Justice Department and the chief law enforcement officer of the United States
Broader: change: the action of changing something | Unrelated: hostess: a woman innkeeper
Broader: change: the action of changing something | Unrelated: acute lymphocytic leukemia: acute leukemia characterized by proliferation of immature lymphoblast-like cells in bone marrow, lymph nodes, spleen, and blood; most common in children
Broader: change: the action of changing something | Unrelated: mammogram: X-ray film of the soft tissue of the breast