3. expand to express in fuller form or greater detail; develop: to expand a story into a novel.
4. expand to write (a mathematical expression) so as to show the products of its factors.
5. expand to rewrite (a mathematical expression) as a sum, product, etc., of terms of a particular kind: to expand a function in a power series.
6. (v.i.)expand to increase in extent, size, scope, or volume.
7. expand to spread out; unfold.
8. expand to express something more fully (usu. fol. by on or upon).
Etymology: (1400–50; late ME < L expandere to spread out =ex-ex -1+pandere to spread, extend)
Definition of 'expand'
Princeton's WordNet
1. (verb)expand, spread out extend in one or more directions "The dough expands"
2. (verb)expand become larger in size or volume or quantity "his business expanded rapidly"
3. (verb)expand make bigger or wider in size, volume, or quantity "expand the house by adding another wing"
4. (verb)boom, thrive, flourish, expand grow vigorously "The deer population in this town is thriving"; "business is booming"
5. (verb)inflate, blow up, expand, amplify exaggerate or make bigger "The charges were inflated"
6. (verb)elaborate, lucubrate, expatiate, exposit, enlarge, flesh out, expand, expound, dilate add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing "She elaborated on the main ideas in her dissertation"
7. (verb)extend, expand expand the influence of "The King extended his rule to the Eastern part of the continent"
1. (verb)expand ≠ contract The metal expands when heated.; I'm trying to expand my knowledge of the subject.; our plan to expand the living room
2. expand (of business) to develop plans to expand the business; the expansion of the airport; expansion of the metal; the company's global expansion
Definition of 'expand'
Webster Dictionary
1. (verb)expand to lay open by extending; to open wide; to spread out; to diffuse; as, a flower expands its leaves
2. (verb)expand to cause the particles or parts of to spread themselves or stand apart, thus increasing bulk without addition of substance; to make to occupy more space; to dilate; to distend; to extend every way; to enlarge; -- opposed to contract; as, to expand the chest; heat expands all bodies; to expand the sphere of benevolence
3. (verb)expand to state in enlarged form; to develop; as, to expand an equation. See Expansion, 5
4. (verb)expand to become widely opened, spread apart, dilated, distended, or enlarged; as, flowers expand in the spring; metals expand by heat; the heart expands with joy
Sense: to make or grow larger; to spread out wider Metals expand when heated; He does exercises to expand his chest; The school's activities have been expanded to include climbing and mountaineering.
Definitions of expand 
Afrikaans: uitbrei
Arabic: يُوَسِّع، يُمَدِّد
Bulgarian: разширявам
Brazilian: expandir
Czech: rozšířit, roztáhnout
German: ausdehnen
Danish: udvide sig; udvikle; eksp
Greek: επεκτείνω, επεκτείνομαι, 
Spanish: ampliar, aumentar, dilata
Estonian: laiendama, laienema
Farsi: گسترده کردن؛ پهن کردن
Finnish: laajentua
French: (se) dilater; (se) dévelo
Hebrew: לְהַרחֵיב
Hindi: फैल जाना, फैलाना
Croatian: proširiti
Hungarian: kiterjeszt
Indonesian: mengembang
Icelandic: þenja(st) út; stækka
Italian: espandere, espandersi; am
Japanese: 広げる
Korean: 늘리다, 확대하다
Lithuanian: iš(si)plėsti, praplėsti
Latvian: izplest; izplesties; papl
Malay: kembang
Dutch: (doen) uitzetten, zich ui
Norwegian: utvide (seg), utbre seg
Polish: rozszerzać się, rozwijać
Persian: گسترده کردن؛ پهن کردن
Pashto: غوړول (لكه فرش)، ويړول، خ
Portuguese: expandir/ampliar
Romanian: a (se) dilata; a dezvolta
Russian: расширять(ся)
Slovak: roztiahnuť sa; rozšíriť s
Slovenian: širiti (se)
Serbian: proširiti
Swedish: [ut]vidga [sig], svälla, 
Thai: ทำให้กว้าง; แผ่ขยาย
Turkish: genişle(t)mek
Taiwanese: 擴大，擴張
Ukrainian: поширвати(ся); розтягуват
Urdu: جسامت ، پیمائش یا اہمیت م
Vietnamese: nở ra; mở rộng
Chinese: 扩大
