| The word   is not a valid scrabble word2 short excerpts of WikWik.org (WikWik is an online database of words defined in the English, French, Spanish, Italian, and other Wiktionnaries.)- retro-engineering v. Present participle of retro-engineer.
 - retro-engineering n. The practice of fitting an earlier or superseded design or part to a machine etc. to achieve a specific purpose.
 
 19 valid words from 2 definitionsACHIEVE AN DESIGN EARLIER ENGINEER FITTING MACHINE OF OR PART PARTICIPLE PRACTICE PRESENT PURPOSE RETRO SPECIFIC SUPERSEDED THE TO 1 invalid word from 2 definitionsETC 23 words-in-word (Words found as is inside the word.)EE EN ENG ENGINE ENGINEER ENGINEERING ER ERING ET GI GIN IN ING NE NEE OE RE RET RETRO RETROENGINE RIN RING ROE 12 words-in-word RTL (Words found written from right to left, inside the word.)EE EEN EN ER IRE NE OR ORT RE REE REEN TE Scrabble scoring- 18 points, without game rules.
 
 Other languagesCategories without words- No anagrams (Word found by changing the order of the letters.)
 - No cousins (Word found by changing only one letter.)
 - No lipograms (Word found when removing only one letter.)
 - No epentheses (Word found when adding only one letter.)
 - No suffixes (Word found by adding one or more letters at the end of the word.)
 - Not found in the middle (Word found by adding letters in front and at the end of the word.)
 - No prefixes (Word found by adding one or more letters in front of the word.)
 - No anagrams can be formed with an extra letter (New word formed with all the letters of the word and an extra letter.)
 - No anagrams can be formed by removing a letter (New word formed with all the letters of the word minus a letter.)
 
  Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
 
 
 
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