| Sr. | Explanation | One Word Substitution |
| 501 | Ridiculous use of words | Malapropism |
| 502 | Speech or writing in a form that is no longer in general use now | Archaic |
| 503 | A song sung at burial | Dirge |
| 504 | Something which can be taken for granted | Postulate |
| 505 | That which cannot be understood | Unintelligible |
| 506 | A short walk for pleasure or exercise | Stroll |
| 507 | One who is bad in spelling | Cacographist |
| 508 | The form of madness which gives a person the idea that his importance is very great | Megalomania |
| 509 | The strong and unreasonable belief that your own country or race is the best | Chauvinism |
| 510 | A ride on someone else’s back or shoulders | Piggyback |
| 511 | That which cannot be rectified or make good | Irreparable |
| 512 | That which is extremely important and necessary | Indispensable |
| 513 | To twist or move part of your body, with small, quick movements | Wriggle |
| 514 | Transitional phase of growth and development between childhood and adulthood | Adolescence |
| 515 | A verse letter | Epistle |
| 516 | A person who betrays someone or something | Traitor |
| 517 | A public declaration of policy and aims, issued before an election by a political party | Manifesto |
| 518 | Word for word reproduction | Verbatim |
| 519 | A tube containing mirrors and pieces of coloured glass or paper, whose reflections producechanging patterns when the tube is rotated | Kaleidoscope |
| 520 | A person who studies the formation of the earth | Geologist |
| 521 | A person who is the legal property of another and is forced to obey them | Slave |
| 522 | Impossible to harm, damage, or defeat | Invulnerable |
| 523 | A small kitchen or room at the back of a house used for washing dishes | Scullery |
| 524 | Land so surrounded by water as to be almost an island | Peninsula |
| 525 | A person who accompanies and looks after another person or group of people | Chaperon |
| 526 | Deviation or departure from common rule or standard | Anomaly |
| 527 | A book or picture produced merely to bring in money | Pot-boiler |
| 528 | To surround with armed forces | Besiege |
| 529 | Explicit understanding to do something | Promise |
| 530 | Room with toilet facilities | Lavatory |
| 531 | A person who is talkative | Garrulous |
| 532 | A statement which cannot be understood | Incomprehensible |
| 533 | An alphabetical list of words relating to a specific subject, text, or dialect, with explanations | Glossary |
| 534 | A person who settles a dispute or has ultimate authority in a matter | Arbiter |
| 535 | Irrational fear of crowds | Ochlophobia |
| 536 | To remove the skin of a potato or an orange | Peel |
| 537 | A tumour which is not likely to spread | Benign |
| 538 | Run away from home with lover | Elope |
| 539 | That which can be carried | Portable |
| 540 | People in a riot causing trouble or violence | Mob |
| 541 | To congratulate someone in a formal manner | Felicitate |
| 542 | One who talks continuously | Loquacious |
| 543 | The natural home or environment of an animal, plant, or other organism | Habitat |
| 544 | A book containing an alphabetical index of the names and addresses of persons in a city,district, organization, etc | Directory |
| 545 | A rough and bad-mannered person | Boor |
| 546 | Place which provides both boarding and lodging | Inn |
| 547 | A person from the countryside who is considered to be awkward and stupid | Bumpkin |
| 548 | Having both male and female organs | Hermaphrodite |
| 549 | A person who sneaks into a country | Infiltrator |
| 550 | One who is reckless and wasteful with his money | Spendthrift |
