481. The study of worms and insects : Entomology
482. Underground place for storing wine or other provisions : Cellar
483. Words inscribed on a tomb : Epitaph
484. Something which lasts forever : Eternal
485. The practise of having many wives : Polygamy
486. Incapable of being approached : Inaccessible
487. A person who collects and / or studies stamps : Philatelist
488. A person who works for an employer for a fixed period of time in order to learn the particular skills needed in their job : Apprentice
489. One who does something for the first time : Pioneer
490. Guilty of the crime : Culpable
491. Person who files a suit : Plaintiff
492. Completing a period of hundred years : Centennial
493. Edible means that which is worth eating
494. Lack of feeling : Apathy
495. That which makes it difficult to recognize the presence or real nature of something : Camouflage
496. A government run by officials : Bureaucracy
497. A word or practice that has gone out of use : Obsolete
498. Not easily pleased by anything : Fastidious
499. A fictitious name especially one assumed by an author : Pseudonym
500. A former student of a school, college or university : Alumnus
501. Favouritism granted in politics or business to relatives : Nepotism
502. One who is rather fastidious : Meticulous
503. The firing of many guns at the same time to mark an occasion : Salvo
504. Person leading a life of strict self-discipline : Ascetic
505. Take great pleasure : Revel
506. An assembly of worshipers : Congregation
507. Fear of closed spaces : Claustrophobia
508. A collection of slaves : Coffle
509. Man who has more than one wife at a time : Polygamist
510. A list of explanation of rare, technical or obsolete words : Lexicon
511. Passing out of use : Obsolescent
512. A woman whose husband is dead : Widow
513. One who enjoys inflicting pain on himself : Masochist
514. The secretary’s proposal was adopted with the full agreement of all the members : Unanimously
515. A word composed of the first letters of the words in a phrase : Acronym
516. To play the part of and function as some other person : Act
517. People at a religious gathering : Congregation
518. A decorative handwriting : Calligraphy
519. Science or practice of map drawing : Cartography
520. A public institution for the care and protection of children without parents : Orphanage
