ice age — (often initial capital letters) the glacial epoch, especially the Pleistocene Epoch.
left stage — the part of the stage that is left of center as one faces the audience.
middle age — the period of human life between youth and old age, sometimes considered as the years between 45 and 65 or thereabout.
of age — the length of time during which a being or thing has existed; length of life or existence to the time spoken of or referred to: trees of unknown age; His age is 20 years.
offstage — off the stage or in the wings; away from the view of the audience (opposed to onstage).
old age — the last period of human life, now often considered to be the years after 65.
onstage — on or onto the stage (opposed to offstage): The director shouted, “Onstage, everybody!”.
osage — a member of a North American Indian people formerly of western Missouri, now living in northern Oklahoma.
purple sage — a plant, Salvia leucophylla, of the mint family, native to California, having silvery leaves and purple spikes of flowers.
rain gauge — an instrument for measuring rainfall.
restage — a single step or degree in a process; a particular phase, period, position, etc., in a process, development, or series.
rib cage — the enclosure formed by the ribs and their connecting bones.
right stage — the part of the stage that is right of center as one faces the audience.
stone age — the period in the history of humankind, preceding the Bronze Age and the Iron Age, and marked by the use of stone implements and weapons: subdivided into the Paleolithic, Mesolithic, and Neolithic periods.
strain gauge — Geology. a type of extensometer designed for geophysical use.
thrust stage — a stage that extends beyond the proscenium arch and is usually surrounded on three sides by seats.
title page — the page at the beginning of a volume that indicates the title, author's or editor's name, and the publication information, usually the publisher and the place and date of publication.
white sage — Also called greasewood. a shrubby plant, Salvia apiana, of the mint family, native to southern California, having white, hairy foliage and spikes of white or pale lavender flowers.
wire gauge — a gauge calibrated for determining the diameter of wire.
wood sage — a downy labiate perennial, Teucrium scorodonia, having spikes of green-yellow flowers: common on acid heath and scree in Europe and naturalized in North America
Three-syllable rhymes
come of age — If something comes of age, it reaches an important stage of development and is accepted by a large number of people.
disengage — to release from attachment or connection; loosen; unfasten: to disengage a clutch.
golden age — the most flourishing period in the history of a nation, literature, etc.
iron age — the period in the history of humankind, following the Stone Age and the Bronze Age, marked by the use of implements and weapons made of iron.
landing stage — a floating platform used as a wharf.
legal age — the age at which a person acquires full legal rights and responsibilities, such as the right to make contracts and deeds.
living wage — a wage on which it is possible for a wage earner or an individual and his or her family to live at least according to minimum customary standards.
mental age — the level of native mental ability or capacity of an individual, usually as determined by an intelligence test, in relation to the chronological age of the average individual at this level: a ten-year-old child with the mental age of a twelve-year-old; a mental age of twelve.
narrow gauge — a standard of measure or measurement.
pressure gauge — an instrument for measuring the pressure of a gas or liquid.
silver age — Classical Mythology. the second of the four ages of humankind, inferior to the golden age but superior to the bronze age that followed: characterized by an increase of impiety and of human weakness.
squirrel cage — a cage containing a cylindrical framework that is rotated by a squirrel or other small animal running inside of it.