[fast-nis, fahst-] /ˈfæst nɪs, ˈfɑst-/
a secure or fortified place; stronghold:
a mountain fastness.
the state of being fixed or firm:
the fastness of democratic institutions.
the state of being rapid.
a stronghold; fortress
the state or quality of being firm or secure
the ability of a dye to remain permanent and not run or fade
“a place not easily forced, a stronghold,” late Old English fæstnes, from fast (adj.) in its older sense of “firm, fixed in place” + -ness.
noun, Judaism. 1. . [tah-nit es-ter, -nis; Sephardic Hebrew tah-ah-neet es-ter; Ashkenazic Hebrew tah-ah-nis es-tuh r] /ˈtɑˌnɪt ˈɛs tər, -nɪs; Sephardic Hebrew ˌtɑ ɑˈnit ɛsˈtɛr; Ashkenazic Hebrew ˈtɑ ɑ nɪs ˈɛs tər/ noun 1. a Jewish fast day observed on the 13th day of the month of Adar in memory of Esther’s fast of three […]
- Fast neutron
noun 1. (physics) fast neutron A neutron that is not in thermal equilibrium with the surrounding medium, especially one produced by fission. Compare slow neutron. See also fast-breeder reactor.
[ged-uh-lahy-uh, gi-dal-yuh] /ˌgɛd əˈlaɪ ə, gɪˈdæl yə/ noun, Judaism. 1. .
noun, Informal. 1. a shrewd action, especially when unscrupulous or dishonest; an unfair trick, deceitful practice, dishonest dealing, etc.: He pulled a fast one on me by paying me with a worthless check. noun phrase A trick or deception; clever subterfuge; dipsy-doodle: That was sure a fast one, you wearing the false mustache Related Terms […]