Lexical Definition

‎κλῆσις‎ klēsis (klay'-sis) calling G:N-F
from a shorter form of ‎καλέω‎

calling.

Usage: 4 forms in 12 verses
Form Translated As     In Verse(s)
κλῆσισ calling Rom.11.29
κλῆσιν calling 1Cor.1.26 • 2Pet.1.10
κλήσεωσ calling Eph.1.18 • Eph.4.1 • Eph.4.4 • Phil.3.14 • 2Thess.1.11
of calling LXX.Jer.31.6 • Heb.3.1
κλήσει calling 1Cor.7.20
with a calling 2Tim.1.9

Abbott-Smith

κλῆσις, -εως, ἡ (καλέω), [in LXX: Je 38 (31):6* (קרא), Jth 12:10 A, III Mac 5:14*;]
a calling, call; in NT, always of the Divine call to salvation: Ro 11:29, I Co 1:26 7:20, Eph 1:18 4:1, 4, Phl 3:14, II Th 1:11, II Ti 1:9, He 3:1, II Pe 1:10 (Cremer, 332).†

Abbott-Smith References

Book Refs
Jeremiah 31:6*
Romans 11:29
1 Corinthians 1:26 · 7:20
Ephesians 1:18 · 4:1 · 4:4
Philippians 3:14
2 Thessalonians 1:11
2 Timothy 1:9
Hebrews 3:1
2 Peter 1:10

Liddell-Scott-Jones

κλῆσις, εως, ἡ,

(καλέω) calling, call, [Refs 5th c.BC+]

__2 calling into court, summons, prosecution, [Refs 5th c.BC+]
__3 invitation to a feast, [Refs 4th c.BC+]
__4 invocation, θεῶν[Refs 5th c.BC+]
__5 calling to aid, [Refs 2nd c.BC+]
__6 calling in a religious sense, [NT]
__II name, appellation, [Refs 5th c.BC+]by name, [Refs]; reputation, [Refs 5th c.BC+]
__III Grammars, αἱ κ. τῶν ὀνομάτων the nominatives, opposed to αἱ πτώσεις (the oblique cases), [Refs 4th c.BC+]; ἔχειν θηλείας ἢ ἄρρενος κλῆσιν the nominative form of.., [Refs]
__IV = Latin classis, [Refs 1st c.BC+]

LSJ Scripture Refs: 1Cor.7.20