Lexical Definition

‎θάνατος‎ thánatos (than'-at-os) death ^G:N-M
from ‎θνήσκω‎

X deadly, (be…) death.

• (properly, an adjective used as a noun) death (literally or figuratively)

Abbott-Smith

θάνατος, -ου, ὁ (θνήσκω), [in LXX chiefly for מָוֶת מוּת, sometimes דֶּבֶר;]
death;
1. of the death of the body, whether natural or violent: Jo 11:13, Phl 2:27, He 7:23, al; opp. to ζωή, Ro 8:38, Phl 1:20; of the death of Christ, Ro 5:10, Phl 3:10, He 2:9; ῥυέσθαι (σώζειν) ἐκ θ., II Co 1:10, He 5:7; περίλυπος ἕως θανάτου, Mt 26:38, Mk 14:34; μέχρι (ἄχρι) θ., Phl 2:8, Re 2:10; πληγὴ θανάτου, a deadly wound, Re 13:3; ἰδεῖν θάνατον, Lk 2:26, He 11:5; γεύεσθαι θανάτου, Mk 9:1; ἔνοχος θανάτου, Mk 14:64; θανάτῳ τελευτᾶν (Ex 21:17*, מוּת יוּמָת), Mk 7:10; death personified, Ro 6:9, I Co 15:26, Re 21:4; pl., of deadly perils, II Co 11:23.
2. Of spiritual death: Jo 5:24 8:51, Ro 7:10, Ja 1:15 5:20, I Jo 3:14 5:16, al.; of eternal death, Ro 1:32 7:5, al.; ὁ θ. ὁ δεύτερος, Re 2:11 21:8 (cf. Cremer, 283 ff.; DB, iii, 114 ff.; DCG, i, 791 f.).

Abbott-Smith References

Liddell-Scott-Jones

θάνατος [θᾰ], ὁ,

(θνῄσκω) death, whether natural or violent, [Refs 8th c.BC+]; τῶν ὑπαλευάμενος θάνατον the death threatened by them, [Refs 8th c.BC+]; θάνατόνδε to death, [Refs 8th c.BC+]; θανάτου τέλος, μοῖρα, [Refs 4th c.BC+]; θανάτου πέρι καὶ ζωᾶς for life and death, [Refs 5th c.BC+]; πόλεώς ἐστι θ., ἀνάστατον γενέσθαι it is its death, [Refs 4th c.BC+]; γῆρας ζῶν θ. [Refs 2nd c.AD+]; θάνατον ἀποθνῄσκειν, τελευτᾶν, [Refs 1st c.BC+]

__2 in Law, death-penalty, θάνατον καταγνῶναί τινος to pass sentence of death on one, [Refs 5th c.BC+]; θανάτου δίκῃ κρίνεσθαι[Refs 5th c.BC+]; πρὸς τοὺς ἐχθροὺς.. ἀγωνίσασθαι περὶ θ. [Refs 4th c.BC+]; θ. τῆς ζημίας ἐπικειμένης the penalty is death, [Refs 5th c.BC+]; elliptically, παιδίον κεκος μημένον τὴν ἐπὶ θανάτῳ (i.e. στολήν) [Refs 5th c.BC+]; but δῆσαί τινα τὴν ἐπὶ θανάτῳ (i.e. δέσιν) [Refs 5th c.BC+]; τὴν ἐπὶ θανάτῳ ἔξοδον ποιεῖσθαι to go to execution, [Refs]; τοῖς Ἀθηναίοις ἐπιτρέψαι περὶ σφῶν αὐτῶν πλὴν θανάτου for any penalty short of death, [Refs 5th c.BC+]; εἰργόμενον θανάτου καὶ τοῦ ἀνάπηρον ποιῆσαι short of death or maiming, [Refs 4th c.BC+]
__3 plural, θάνατοι kinds of death, [Refs 8th c.BC+]; the deaths of several persons, [Refs 5th c.BC+]; poetry, of one person, [Refs 5th c.BC+]*apocalyptic [Refs 1st c.AD+]; especially of violent death, θ. αὐθένται [Refs 5th c.BC+]
__II as proper name, Θάνατος [Refs 8th c.BC+]; ὃν [ἰὸν] τέκετο Θ. [Refs 5th c.BC+]
__III corpse, θ. ἀτύμβευτος [Refs 1st c.BC+]