How to add suggested words and how add new words to the dictionary

I have installed one extension, Spanish dictionary es_ANY.oxt, but one word with red-underline doesn’t show the correction i like, how can we add a new word to the suggested list ?

On other hand , the dictionary doesn’t show me errors in a word that i know is incorrect, How can we add any word to my dictionary to show me that word next time with an red underline and then we can right-click over the word and select the preferred suggestion that we had added.

System: ubuntu 18.04

LO: 6.0.3.2

  1. The mentioned extension includes several dictionaries for several variations of Spanish. It is important.
  2. You can’t have any influence on the spelling suggestions (unless, of course, you’re a skilful programmer [at least as skilful as Németh László] and can hack the Hunspell algorithm). Spelling suggestions are picked from all installed dictionaries for the particular language. If you don’t see some suggestion, it’s either missing in the dictionaries or not similar enough to the misspelled word.
  3. Spelling dictionaries are plain-text files and you can simply remove any entry (or add it). Just search for xx_YY.dic file for your language, where xx is a language code and YY is a locale code, say, es_MX.dic for Spanish (Mexico), and edit it. In the case in question, you may need to edit all es_YY.dic files if you want to remove a word for all variations of Spanish. Ideally, you should also adjust the entries count in the first line of the file.