Phantom

[fan-tuh m] /ˈfæn təm/

noun
1.
an apparition or specter.
2.
an appearance or illusion without material substance, as a dream image, mirage, or optical illusion.
3.
a person or thing of merely illusory power, status, efficacy, etc.:
the phantom of fear.
4.
an illustration, part of which is given a transparent effect so as to permit representation of details otherwise hidden from view, as the inner workings of a mechanical device.
adjective
5.
of, relating to, or of the nature of a phantom; illusory:
a phantom sea serpent.
6.
Electricity. noting or pertaining to a .
7.
named, included, or recorded but nonexistent; fictitious:
Payroll checks were made out and cashed for phantom employees.
/ˈfæntəm/
noun
1.

2.
the visible representation of something abstract, esp as appearing in a dream or hallucination: phantoms of evil haunted his sleep
3.
something apparently unpleasant or horrific that has no material form
4.
(med) another name for manikin (sense 2b)
n.

c.1300, fantum “illusion, unreality,” from Old French fantosme (12c.), from Vulgar Latin *fantauma, from Latin phantasma “an apparition” (see phantasm). The ph- was restored in English late 16c. (see ph). Meaning “specter, spirit, ghost” is attested from late 14c.; that of “something having the form, but not the substance, of a real thing” is from 1707. As an adjective from early 15c.

phantom phan·tom or fan·tom (fān’təm)
n.

adj.