as long as

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Used other than figuratively or idiomatically: see as,‎ long.
It took three times as long as I expected (= three times longer than I did).
(idiomatic) Provided that, if, assuming (depending upon some condition or requirement).
I don't mind if he stays there, as long as he cleans up after himself when he's done.
- 1997, Max Martin, Backstreet Boys, As Long as You Love Me:
  I don't care who you are, where you're from, what you did, as long as you love me
(idiomatic) For the entire duration that; while; since.
As long as you're here, you may as well help me with the garden.

if, assuming

Afrikaans: solank (af)
Arabic: مَا دَامَ (mā dāma), مَا (ar) (mā)
Catalan: sempre que
Chinese:
Mandarin: 只要 (zh) (zhǐyào)
Czech: jestliže (cs), pokud (cs)
Dutch: mits (nl)
Finnish: kunhan (fi)
French: pour peu que (fr), du moment que (fr), pourvu que (fr)
Georgian: მანამ (manam)
German: solange (de)
Greek: εφόσον (el) (efóson)
Ancient Greek: ἐὰν μόνον (eàn mónon)
Hebrew: כל עוד (kol 'od)
Hungarian: ha (hu), hogyha (hu), amennyiben (hu)
Icelandic: að því tilskildu að
Indonesian: selama (id)
Irish: chomh fada is
Italian: purché (it), ammesso che, a patto che, a condizione che (it)
Japanese: ...限り (ja) (...かぎり, ...kagiri)
Kankanaey: basta, mo ket
Latin: tamdiū quam
Low German:
German Low German: solang
Macedonian: сѐ додека (sè dodeka), доколку (dokolku)
Polish: o ile (pl)
Portuguese: se (pt), contanto que (pt), desde que
Russian: е́сли (ru) (jésli), е́сли то́лько (jésli tólʹko)
Slovak: pokiaľ
Spanish: siempre y cuando (es), con tal que, con tal de que, siempre que, con tanto que (es)
Swedish: förutsatt att
Tagalog: basta
Thai: ตราบใดที่
Vietnamese: miễn (vi)

while

Afrikaans: solank (af)
Belarusian: паку́ль (pakúlʹ)
Catalan: mentre (ca), tant que
Chinese:
Mandarin: ...的時候 / ...的时候 (zh) (...de shíhou), 當 / 当 (zh) (dāng)
Czech: zatímco (cs), dokud (cs)
Dutch: zolang (nl)
Esperanto: tiom longe kiom, tiel longe kiel
Finnish: niin kauan kuin
French: pendant que (fr), tant que (fr), tandis que (fr)
Georgian: სადამდეც (sadamdec)
German: solange (de), während (de)
Gothic: 𐌸𐌰𐌽𐌳𐌴 (þandē)
Greek: όσο (el) (óso)
Hebrew: כל עוד (kol od)
Hungarian: amíg (hu), ameddig (hu), míg (hu)
Icelandic: á meðan (is)
Irish: chomh fada is
Italian: mentre (it)
Japanese: ...間に (ja) (...あいだに, ...aida ni), ...時に (ja) (...ときに, ...toki ni)
Korean: 하는 동안 (haneun dong'an)
Latin: dōnec (la), quamdiū, quoad (la)
Low German:
German Low German: solang, wieldes, wielt, dewiel, wieldat, wiel dat, amangs, indes, wiel, inwiel, indem
Norwegian: medan (no) (Nynorsk), mens (no) (Bokmål)
Old English: swa lange swa
Polish: dopóki (pl), skoro (pl)
Portuguese: enquanto (pt)
Romanian: în timp ce
Russian: пока́ (ru) (poká), поку́да (ru) (pokúda), до тех по́р пока́ (do tex pór poká), в то вре́мя как (ru) (v to vrémja kak)
Serbo-Croatian:
Cyrillic: док

Roman: dok (sh)
Slovak: keďže
Spanish: mientras (es)
Swedish: medan (sv)
Ukrainian: по́ки (póky)

Used other than figuratively or idiomatically: see as,‎ long.
These meetings can last as long as three hours.

English