Sanjeev.NET : Wordplay : Words with all letters occurring twice

INTESTINES
ANTIPERSPIRANTES
APPEASES
ARRAIGNING
BERIBERI
BILABIAL
CAUCASUS
CHOWCHOW
CICADELLIDAE
CONCISIONS
COUSCOUS
ESOPHAGOGRAPHERS
FROUFROU
GENSENGS
GREEGREE
GUITGUIT
HAPPENCHANCE
HORSESHOER
HOTSHOTS
INACCIDENTATED
JIPIJAPA
MAHIMAHI
MESOSOME
MILLIEME
MIMETITE
RAPPAREE
REAPPEAR
SCINTILLESCENT
SHAMMASH
SHANGHAIINGS
SIGNINGS
TAENIODONTIDAE
TEAMMATE
UNSUFFICIENCES
VETITIV

Wordplay

Acronym (longest) | Alternating vowels and consonants | Begins and ends with vowels; containing no vowel | Consisting only of consecutive letters | Containing ABC in order | Containing MNOP in order | Containing RSTU in order | Ending with GRY | Ending with MT | Horizontal Symmetry | Letters in alphabetical order | Letters in reverse alphabetical order | Letters occurring twice | Long transposal | Most spelling variations | No letter appearing more than once | One-syllable becomes three-syllable word with one or more letter(s) | Playable on a Musical Instruments | Repetitive identically spelled syllables | Spelled using chemical symbols | Symmetrically distributed letters | Two-syllable becomes one-syllable word with one letter | Using only descender letters | Using only first half alphabet letter | Using only long letters | Using only second half alphabet letter | Using only up letters | Vertical symmetry |