have a seat

English edit

have a seat (third-person singular simple present has a seat, present participle having a seat, simple past and past participle had a seat)

To sit down; to take a seat.
(idiomatic) A polite directive to sit down
Thanks for coming in. Please, have a seat.

As directive, more polite than "Take a seat", much more than "Sit" or "Sit down".

to sit down

Chinese:
Mandarin: 坐下 (zh) (zuòxià)
Danish: sid ned, tag plads
Dutch: ga zitten
Finnish: istuutua (fi)
French: prendre place (fr), s’asseoir (fr)
German: Platz nehmen, sich setzen
Hungarian: helyet foglal
Japanese: 着席する (ja) (ちゃくせきする, chakuseki-suru), 座る (ja) (すわる, suwaru), 腰掛ける (ja) (こしかける, koshikakeru)
Ojibwe: namadabi
Persian: نشستن (fa) (nešastan)
Portuguese: sentar (pt), sentar-se
Russian: сади́ться (ru) impf (sadítʹsja), сесть (ru) pf (sestʹ), присе́сть (ru) pf (priséstʹ)
Swedish: slå sig ned
Turkish: oturmak (tr)

polite directive

Chinese:
Mandarin: 請坐／请坐 (qǐng zuò)
Czech: posaďte se
Finnish: istuutukaa (fi)
French: asseyez-vous (je vous en prie or s'il vous plaît)
Galician: senta
German: nehmen Sie Platz, nimm Platz
Hungarian: (formal, singular) foglaljon helyet, (formal, plural) foglaljanak helyet, (informal, singular) foglalj helyet, (informal, plural) foglaljatok helyet
Indonesian: silahkan duduk
Japanese: 座ってください (すわってください, suwatte kudasai)
Ojibwe: namadabin
Persian: بفرمایید بنشینید, بفرمایید (fa)
Portuguese: sente-se
Russian: сади́тесь, пожа́луйста (sadítesʹ, požálujsta), приса́живайтесь (prisáživajtesʹ)
Spanish: siéntate (es), siéntese (es), (formal) tome asiento
Swedish: slå dig ned