1.) If a Spanish word ends in a vowel, or the letters n, s, the stress falls on the next-to -last syllable.2.) If the word ends in a consonant, other than n,s the stress falls on the last syllable 3.) There are exceptions to the two above rules with words that contain tildes. NOTE: two other sets of words that require written accent marksQuestion wordswords that have the same meaning. An accent is used to differentiate between different meanings for the same word