The seats can be modified to fit other types of vehicle.
2technicalSLGif an adjective, adverb etc modifies another word, it describes something or limits the word's meaning. In the phrase 'walk slowly', the adverb 'slowly' modifies the verb 'walk'.
WORD FOCUS: change WORD FOCUS: change to change something:alter, adapt, adjust, amend, modify, revise, vary to change a system or organization:restructure, reorganize, reform to change something completely:transform, revolutionize to change facts or information, or change what someone has said:twist, distort, misrepresent easily changed:flexible, adaptable impossible to change:fixed, final, irrevocable ➔ See alsochange
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.