Homographs are translation disasters. Never use the same word with two meanings. For example, use right as the opposite to left and use correct, not right, as the opposite to wrong. Synonyms need to be used to make indexes useable but synonyms are language and culture-specific. For example, English may have three common synonyms for a particular operation and French may have only one term.
Localisable indexing needs to be more structured than traditional indexing.
The indexing focus needs to switch from indexing specific information as it occurs in continuous text to matching an index to the general meaning of a block of text. Information should be designed in cohesive, meaningful chunks. The primary focus of index entries should be to index the chunks of information. User-relevant synonyms should be used. International Technical Communication.