There are literally thousands of Spanish words that are easy  for English speakers to to understand. All they have to do is concentrate on the English within these words, stress the correct syllable and pronounce them with a Spanish accent.

EASY WORDS:
béislbol – baseball
café – coffee, cafe
comercial – commercial
especial – special
estúpido – stupid
familia – family
fotografía – photography
limón – lemon
minuto – minute
nervioso – nervous
noviembre – November
operación – operation
refrigerador – refrigerator
teléfono – telephone
vacación – vacation

EASIER WORDS:
banana – banana
chocolate – chocolate
color – color
doctor – doctor
hotel – hotel
idea – idea
natural – natural
radio – radio
taxi – taxi

MORE WORDS:
diccionario – dictionary
dieta – diet
moderno – modern
música – music

Keep your ears and eyes open for more of these words and your Spanish will improve by leaps and bounds.

Costa Rican expression of the week:
The verb turistear means to tour the country. The correct verb is pasear.