Princeton's WordNet

1. illustration(noun)

   artwork that helps make something clear or attractive

2. exemplification, illustration(noun)

   showing by example

3. example, illustration, instance, representative(noun)

   an item of information that is typical of a class or group

   "this patient provides a typical example of the syndrome"; "there is an example on page 10"

4. illustration(noun)

   a visual representation (a picture or diagram) that is used make some subject more pleasing or easier to understand

Kernerman English Learner's Dictionary

1. illustration(noun)ˌɪl əˈstreɪ ʃən

   a picture in a book, magazine, etc.

   color illustrations

2. illustrationˌɪl əˈstreɪ ʃən

   an example or demonstration of sth

   Their project is an illustration of how easily money can be raised.

Wiktionary

1. illustration(Noun)

   The act of illustrating; the act of making clear and distinct; education; also, the state of being illustrated, or of being made clear and distinct.

2. illustration(Noun)

   That which illustrates; a comparison or example intended to make clear or apprehensible, or to remove obscurity.

3. illustration(Noun)

   A picture designed to decorate a volume or elucidate a literary work.

4. illustration(Noun)

   A calculated prevision of insurance premiums and returns (life insurance)

Webster Dictionary

1. Illustration(noun)

   the act of illustrating; the act of making clear and distinct; education; also, the state of being illustrated, or of being made clear and distinct

2. Illustration(noun)

   that which illustrates; a comparison or example intended to make clear or apprehensible, or to remove obscurity

3. Illustration(noun)

   a picture designed to decorate a volume or elucidate a literary work

• illustrasieAfrikaans
• صورَة إيضاحيَّه، رَسْمArabic
• илюстрацияBulgarian
• ilustraçãoPortuguese (BR)
• ilustraceCzech
• die AbbildungGerman
• billedeDanish
• εικόνα, εικονογράφησηGreek
• ilustraciónSpanish
• piltEstonian
• تصویرFarsi
• kuvaFinnish
• illustrationFrench
• אִיוּרHebrew
• चित्र निरूपणHindi
• ilustracijaCroatian
• illusztrációHungarian
• gambarIndonesian
• mynd(skreyting)Icelandic
• illustrazioneItalian
• さし絵Japanese
• 그림, 삽화Korean
• iliustracijaLithuanian
• ilustrācijaLatvian
• gambarMalay
• afbeeldingDutch
• bilde, illustrasjonNorwegian
• ilustracjaPolish
• تصویرPersian
• څرګندونه، توضيح شرح، تصوير، عكس، شكل، مثلPashto
• ilustraçãoPortuguese
• ilustraţieRomanian
• иллюстрацияRussian
• ilustráciaSlovak
• ilustracijaSlovenian
• ilustracijaSerbian
• illustration, bildSwedish
• ภาพประกอบThai
• resimTurkish
• 插圖Chinese (Trad.)
• малюнок, ілюстраціяUkrainian
• تصویرUrdu
• bức tranhVietnamese
• 插图Chinese (Simp.)