different between turndown vs invert

English

Etymology

turn +? down

Noun

turndown (plural turndowns)

1. A downturn.
2. A rejection.
3. (hotels) The service of turning down the bedcovers and often leaving chocolates, etc., on the pillow.
4. A downward pointing extension to a vehicle muffler.

Adjective

turndown (not comparable)

1. Capable of being turned down, or decreased in intensity.

   a turndown lamp

2. Made to wear with the upper part turned down.

   a turndown collar

Anagrams

• down-turn, downturn

English

Pronunciation

• (verb):
  • (UK) IPA^(key): /?n?v??t/
  • (US) enPR: ?n-v?rt?, IPA^(key): /?n?v?t/
  • Rhymes: -??(r)t
• (noun):
  • (UK) IPA^(key): /??nv??t/
  • (US) enPR: ?n?v?rt, IPA^(key): /??nv?t/

Etymology 1

From Middle French invertir

Verb

invert (third-person singular simple present inverts, present participle inverting, simple past and past participle inverted)

1. (transitive) To turn (something) upside down or inside out; to place in a contrary order or direction.

   to invert a cup, the order of words, rules of justice, etc.

   • 1782, William Cowper, Table Talk

     Such reasoning falls like an inverted cone, / Wanting its proper base to stand upon.

2. (transitive, music) To move (the root note of a chord) up or down an octave, resulting in a change in pitch.
3. (chemistry, intransitive) To undergo inversion, as sugar.
4. To divert; to convert to a wrong use.
5. (anatomy) To turn (the foot) inwards.

Derived terms

• invert sugar
• inverted
• invertible

Related terms

• inversion

Translations

See also

• convert

Noun

invert (plural inverts)

1. (obsolete, psychology) A homosexual.
   • 1897, W. Havelock Ellis, Sexual Inversion, p. 202:

     We can seldom, therefore, congratulate ourselves on the success of any "cure" of inversion. The success is unlikely to be either permanent or complete, in the case of a decided invert; and in the most successful cases we have simply put into the invert's hands a power of reproduction which it is undesirable he should possess.

2. (architecture) An inverted arch (as in a sewer). *
3. The base of a tunnel on which the road or railway may be laid and used when construction is through unstable ground. It may be flat or form a continuous curve with the tunnel arch.
4. (civil engineering) The lowest point inside a pipe at a certain point.
5. (civil engineering) An elevation of a pipe at a certain point along the pipe.
6. A skateboarding trick where the skater grabs the board and plants a hand on the coping so as to balance upside-down on the lip of a ramp.

Translations

Adjective

invert (not comparable)

1. (chemistry) Subjected to the process of inversion; inverted; converted.

   invert sugar

Etymology 2

Noun

invert (plural inverts)

1. (zoology, informal) An invertebrate.

References

Anagrams

• Vinter, ventri-, virent