Word of the week: to text

To text (poner un mensaje de texto) is a good example of conversion.
We give this name to a type of word formation which consists in changing the function of a word, without altering its form, e.g. a noun becomes a verb: butter (mantequilla) → to butter (untar con mantequilla). 

Some more examples of conversion:

bottle → to bottle - (botella - embotellar)

condition → to condition -  (condición - condicionar)

corner → to corner - (rincón - arrinconar)

dirty → to dirty – (sucio-ensuciar)

empty → to empty - (vacío - vaciar)

pity → to pity – (compasión - compadecer)

skin → to skin - (piel - despellejar)

As you can see, the most common case of conversion is from noun to verb, but other changes are possible:

adjective → noun: daily → a daily - (diario - un diario)

verb → noun: to bore → a bore – (aburrir - un aburrimiento)

verb → noun: to swim → a swim (nadar - un baño)

conjunction → noun: but (pero) → a but (un pero)