(a) a house, the material building, (b) a household, family, lineage, nation.
Strong's:
οἶκος
a dwelling (more or less extensive, literal or figurative); by implication, a family (more or less related, literally or figuratively) Derivation: of uncertain affinity;
KJV Usage: home, house(-hold), temple.
TBESG:
οἶκος
house
G:N-M
οἶκος, -οῦ, ὁ, [in LXX chiefly for בַּיִת, also for אֹהֶל ,הֵכָל, etc. ;] __1. prop., a house, dwelling: Refs Act.2:2 19:16; with genitive poss., Refs Mat.9:6, 7 Mrk.2:11, Luk.1:23, al.; with genitive attrib., ἐμπορίου, Jhn.2:16; προσευχῆς, Mat.21:13, al.; of a sanctuary (Hdt., Eur.): οἶ. τ. θεοῦ, of the tabernacle, Mat.12:4, al.; the temple, Mat.21:13, al.; metaph. of a city: Refs Mat.23:38, Luk.13:35; of the body, Refs Mat.12:44, Luk.11:24; of Christians, 1Pe.2:5; ἐν οἴ (M, Pr., 81f.), at home, Refs Mrk.2:1, 1Co.11:34 14:35; so κατ ̓ οἶκον, Refs Act.2:46 5:42; οἱ εἰς (= οἱ ἐν; see: εἰς) τ. οἶ., Refs Luk.7:10 15:6; κατ ̓οἴκους, from house to house, Refs Act.8:3 20:20; εἰς (κατ ̓) οἶκον, with genitive (Bl., §46, 9), Refs Mrk.8:3, Luk.14:1, Rom.16:5, al. __2. By meton., a house, household, family: Refs Luk.10:5, Act.7:10, 1Co.1:16, 1Ti.3:4, 5 al.; of the Church, ὁ οἶ. τ. θεοῦ, Refs 1Ti.3:15, Heb.3:2, 1Pe.4:17; of descendants, οἶ Ἰσραήλ (Δαυείδ, Ἰακώβ; Bl, §47, 9), Refs Mat.10:6, Luk.1:27, 33 al. (cf. Refs Exo.6:14, 1Ki.2:30, al.). SYN.: see: οἰκία. (AS)
Thayer:
1) a house 1a) an inhabited house, home 1b) any building whatever 1b1) of a palace 1b2) the house of God, the tabernacle 1c) any dwelling place 1c1) of the human body as the abode of demons that possess it 1c2) of tents, and huts, and later, of the nests, stalls, lairs, of animals 1c3) the place where one has fixed his residence, one's settled abode, domicile 2) the inmates of a house, all the persons forming one family, a household 2a) the family of God, of the Christian Church, of the church of the Old and New Testaments 3) stock, family, descendants of one For Synonyms see entry G5867
G3350 μετοικεσίαμετοικεσία
metoikesia
met-oy-kes-ee'-ah
From a derivative of a compound of G3326 and G3624; a changeofabode, that is, (specifically) expatriation
KJV Usage: X brought, carried (-ying) away (in-) to.
G3609 οἰκεῖοςοἰκεῖος
oikeios
oy-ki'-os
From G3624; domestic, that is, (as noun), a relative, adherent
KJV Usage: (those) of the (his own) house (-hold).
G3611 οἰκέωοἰκέω
oikeō
oy-key'-o
From G3624; to occupyahouse that is, reside (figuratively inhabit, remain, inhere); by implication to cohabit
G3614 οἰκίαοἰκία
oikia
oy-kee'-ah
From G3624; properly residence (abstractly), but usually (concretely) an abode (literally or figuratively); by implication a family (especially domestics)
KJV Usage: home, house (-hold).
G3617 οἰκοδεσπότηςοἰκοδεσπότης
oikodespotēs
oy-kod-es-pot'-ace
From G3624 and G1203; theheadofafamily
KJV Usage: goodman (of the house), householder, master of the house.
G3619 οἰκοδομήοἰκοδομή
oikodomē
oy-kod-om-ay'
Feminine (abstraction) of a compound of G3624 and the base of G1430; architecture, that is, (concretely) a structure; figuratively confirmation
KJV Usage: building, edify (-ication, -ing).
G3623 οἰκονόμοςοἰκονόμος
oikonomos
oy-kon-om'-os
From G3624 and the base of G3551; a housedistributor (that is, manager), or overseer, that is, an employee in that capacity; by extension a fiscal agent (treasurer); figuratively a preacher (of the Gospel)
KJV Usage: chamberlain, governor, steward.
G3626 οἰκουρόςοἰκουρός
oikouros
oy-koo-ros'
From G3624 and οὖρος ouros (a guard; be “ware”); a stayerathome, that is, domesticallyinclined (a “good housekeeper”)
KJV Usage: keeper at home.
G3832 πανοικίπανοικί
panoiki
pan-oy-kee'
Adverb from G3956 and G3624; with the wholefamily
KJV Usage: with all his house.
G3941 πάροικοςπάροικος
paroikos
par'-oy-kos
From G3844 and G3624; having a homenear, that is, (as noun) a by-dweller (alienresident)
KJV Usage: foreigner, sojourn, stranger.
G4040 περίοικοςπερίοικος
perioikos
per-ee'-oy-kos
From G4012 and G3624; housedaround, that is, neighboring (elliptically as noun)
G5944Tribe, Family, Household.
See Definition for phyle { [G5443]}
See Definition for patria { [G3965]}
See Definition for oikos { [G3624]}
These words form a series. phyle is sometimes a race, nation,
but usually a tribe, such as one of the twelve tribes of Israel,
descended from the twelve sons of Jacob.
patria is a smaller division within the tribe, it's an association
of families closely related, in the N.T. generally used of those
descended from a particular one of the sons of Jacob's sons.
oikos is yet narrower, household, including all the inmates of
a single house, being the unit of organization.