Princeton's WordNet

1. knighthood(noun)

   aristocrats holding the rank of knight

Wiktionary

1. knighthood(Noun)

   An honour whereby one is made into a knight, and one can thereafter be called "Sir"

   He's got an OBE, and MBE and his recent work should entitle him to a knighthood.

2. knighthood(Noun)

   The quality of being a knight.

3. knighthood(Noun)

   The knights collectively, the body of knights.

Origin: From knighthod, from cnihthad

Webster Dictionary

1. Knighthood(noun)

   the character, dignity, or condition of a knight, or of knights as a class; hence, chivalry

2. Knighthood(noun)

   the whole body of knights

The Nuttall Encyclopedia

1. Knighthood

   a distinction granted to commoners, ranking next to baronet, now bestowed by the crown; formerly knighthood was a military order, any member of which might create new knights; it was originally the highest rank of Chivalry (q. v.); it was an order of many subdivisions developed during the crusades, and in full flower before the Norman conquest of England.

• ridderskapAfrikaans
• فُروسيَّهArabic
• рицарствоBulgarian
• cavalariaPortuguese (BR)
• rytířský titulCzech
• die RitterwürdeGerman
• ridderskabDanish
• ο τίτλος ή η ιδιότητα του ιππότηGreek
• título de SirSpanish
• rüütliseisusEstonian
• مقام نایت؛ سلحشوریFarsi
• ritariusFinnish
• titre de chevalierFrench
• תוֹאָר אָצִילHebrew
• सामन्त की उपाधिHindi
• viteštvoCroatian
• lovagi rangHungarian
• gelar ksatriaIndonesian
• riddaratignIcelandic
• nomina a cavaliere, cavalieratoItalian
• ナイトの身分Japanese
• 기사의 신분Korean
• „knight“ titulasLithuanian
• bruņinieku kārta; muižnieku kārtaLatvian
• pangkat kesatriaanMalay
• ridderordeDutch
• ridderskapNorwegian
• tytuł szlacheckiPolish
• مقام آقايى و بزرگ منشى؛ سلحشوریPersian
• لوړتيا،لوى مقامPashto
• cavalariaPortuguese
• titlu de cavalerRomanian
• рыцарское званиеRussian
• rytiersky titulSlovak
• red vitezaSlovenian
• rang vitezaSerbian
• riddarvärdighetSwedish
• ตำแหน่งของอัศวินThai
• şövalyelikTurkish
• 爵士的階級或頭銜Chinese (Trad.)
• лицарське званняUkrainian
• سر کا عہدہ یا خطابUrdu
• tước hiệuVietnamese
• 爵士的地位Chinese (Simp.)