• 秘露ペルー

  Peru

• 秘話ひわ

  secret story, unknown episode

• 秘書ひしょ

  (private) secretary

• 秘訣ひけつ

  secret (method, trick, etc.), key (e.g. to success), mysteries (of an art, trade, etc.), recipe, trick

• 秘密ひみつ

  secret, secrecy, confidentiality, privacy

• 神秘しんぴ

  mystery, mysteriousness, secret

• 便秘べんぴ

  constipation

• 極秘ごくひ

  absolute secrecy

• 秘めるひめる

  to hide, to keep to oneself

• 神秘的しんぴてき

  mysterious, mystical

• 秘事ひじ

  secret

• 秘具ひぐ

  sex toy

• 秘跡ひせき

  sacrament

• 秘中ひちゅう

  in secret

• 秘計ひけい

  secret plan

• 秘鑰ひやく

  secret key

• 秘口ひこう

  vagina, pussy

• 秘結ひけつ

  constipation

• 秘曲ひきょく

  secret music

• 秘説ひせつ

  secret theory

• 秘奥ひおう

  secrets, mysteries

• 秘匿ひとく

  hiding, concealment

• 秘帖ひちょう

  secret notebook

• 秘裂ひれつ

  female genitalia

• 秘技ひぎ

  secret technique, secret art

• 秘教ひきょう

  esoteric religion

• 秘部ひぶ

  secret place

• 秘芸ひげい

  secret technique, secret art

• 秘義ひぎ

  esoterica, mystery, sanctum

• 秘宝ひほう

  hidden treasure, treasured article

• 秘文ひもん

  password, secret spell, secret phrase

• 秘図ひず

  treasured picture, secret picture, obscene picture

• 秘鍵ひけん

  hidden mysteries, secret principle

• 秘儀ひぎ

  secret ceremony, ritual, sanctum sanctorum

• 秘湯ひとう

  little-known hot spring, secret hot spring, secluded hot spring

• 秘史ひし

  secret history, hidden history, unknown historical facts

• 秘本ひほん

  treasured book, secret book, pornographic book

• 秘策ひさく

  secret plan, secret scheme, secret stratagem, secret method

• 秘蔵ひぞう

  treasuring, cherishing, prizing, holding dear

• 秘術ひじゅつ

  secret art, secret technique, mysteries (of an art)

• 秘苑ひえん

  secret garden, private garden

• 秘方ひほう

  secret method, secret recipe, (prescription for a) secret medicine

• 秘伝ひでん

  secret (recipe, medicine, etc.), mysteries (e.g. of an art)

• 秘仏ひぶつ

  Buddhist image normally withheld from public view

• 秘薬ひやく

  secret medicine, secret remedy, nostrum

• 秘境ひきょう

  unexplored region, secluded region, place off the beaten track

• 秘録ひろく

  private records, secret notes, secret document, confidential papers

• 秘所ひしょ

  secret place, hidden place

• 秘剣ひけん

  secret swordsmanship (of a specific school), secret traditions of fencing

• 秘法ひほう

  secret method, secret process, secret formula