14:I[5014,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"default"] 15:I[38392,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"PracticeCard"] 17:I[70570,["/_next/static/chunks/11d1gk4m2o846.js","/_next/static/chunks/14mrh2-p_w84d.js","/_next/static/chunks/40y9lkvta2o_p.js"],"ExamAppearanceBadge"] 16:T63d,• The crowd was very big.
- 'crowd' is- Collective noun
- The word "crowd" refers to a group of people considered as a single entity.

• Collective noun:
- A collective noun is a noun that refers to a group of individuals or things considered as a single unit
- যে সকল noun দ্বারা সমজাতীয় কিছু ব্যক্তি, বস্তু বা স্থানের অবিভক্ত সমষ্টিকে বোঝায় তাদেরকে Collective noun বলে।
- For example, an army is a group of soldiers, and a team is a group of players.
- অর্থাৎ, কিছু Common noun-এর সমষ্টিকেই Collective noun বলে।

• আরও কিছু Collective noun হলো - Family, audience, herd, public, library, jury, committee, crew, majority, minority, etc.

• অন্যদিকে,
• Proper noun: Names a specific person, place, or organization (e.g., Dhaka, Rahim).
• Abstract noun: Denotes an idea, quality, or state rather than a concrete object (e.g., happiness, freedom).
• Common noun: A general name for a person, place, or thing (e.g., city, teacher).

Source:
1. A passage to the English Language by S M Zakir Hussain.
2. NCTB English Grammar (Class 9 & 10)