| A | B |
| -ada | sentada (sit down protest), acampada (camping) |
| -ado | peinado (hairstyle) afeitado (shave) |
| -ancia | tolerancia (tolerance), vigilancia (vigilance) |
| -anza | enseñanza (teaching), labranza (tilling, farming) |
| -dero | embarcadero (pier), fregadero (sink) |
| -ción | retención (retention), asimilación (assimilation) |
| -itud | similitud (similarity), lentitud (slowness) |
| -ncia | abundancia (abundance), insistencia (insitence) |
| -bilidad | variabilidad (variability), estabilidad (stability) |
| -dad | crueldad (cruelty), frialdad (coldness) |
| -ura | locura (craziness), frescura (freshness) |
| -ez | redondez (roundness), equisitez (exquisiteness) |
| -íaco/a | austriaco/a (Austrian), paradisíaco/a (paradisiacal) |
| -al | constitucional (constitutional), provisional (provisional) |
| -ar | polar (polar), lunar (lunar) |
| -ático/a | esquemático/a (squematic), enigmático/a (enigmatic) |
| -ario/a | reglamentario/a (regulatory), supementario/a (supplementary) |
| -ado/a | lavado/a (washed), cualificado/a (qualified) |
| -ante | abundante (abundant), impresionante (impressive |
| -ible | eludible (avoidable), descriptible (describable) |
| -able | variable (variable), canjeable (exchangeable) |
| -ificar | edificar (to build), ejemplificar (to exemplify) |
| -ear | agujerear (to drill a hole), golear (to score a goal) |
| -ecer | anochecer (to get dark), enriquecer (to enrich), palidecer (to turn pale) |
| -izar | aterrizar (to land), carbonizar (to carbonize) |
| -ado/a | profesorado (faculty), millonada (many millions) |
| -aje | ropaje (apparel), vendaje (bandages, dressing) |
| -edo/a | robledo (oak grove), arboleda (grove) |
| -ero | refranero (collection of proverbs), avispero (wasps' nest) |
| -ería | panadería (bakery), ganadería (stockbreeding) |
| -ero/a | panadero/a (baker), zapatero/a (shoe maker) |
| -ario/a | bibliotecario/a (librarian), funcionario/a (government employee) |
| -ador/a | controlador/a (controller), vendedor/a (salesperson) |
| -ista | mileurista (person who make 1000 euros a month), flautista (flautist) |