Usage: 2 forms in 3 verses
Form Translated As     In Verse(s)
φάσματι a visible manifestation LXX.Num.16.30
φάσμα a visible manifestation LXX.Isa.28.7
manifestation LXX.Job.20.8

Liddell-Scott-Jones

φάσμα (phasma) a visible manifestation G:N-N

φάσμα, ατος, τό:

(φαίνω):— apparition, phantom, [Refs 5th c.BC+], etc.; φ. ἀνθρώπου spectral appearance of a man, [Refs 5th c.BC+]; vision in a dream, ὀνείρων φάσματα [Refs 5th c.BC+]; νύχια φ. [Refs 5th c.BC+]

__2 appearance, phenomenon, [Refs 5th c.BC+]: so, of strange phenomena in the heavens, [Refs 4th c.BC+]; of images apprehended by sense, [Refs 2nd c.AD+]
__3 of shows or mysteries, as images or types of realities, εὐδαίμονα φ. μυούμενοι [Refs 5th c.BC+]
__4 sign from heaven, portent, omen, [Refs 5th c.BC+]; Παλλάδα.. εὔσημον φ. ναυβάταις Eur.[Refs]
__5 monster, prodigy, periphrastic, φάσμα ταύρου, ὕδρας, a monster of a bull, of a hydra, [Refs 5th c.BC+]; of the Sphinx, [Refs]