How to Say "rainbow" in Spanish
The Spanish word for “rainbow” is “arco” — A1 level. This is a very common word in everyday Spanish.
English → SpanishA1
nounA1
When used in the phrase 'arco iris'
Examples
El puente antiguo tiene un arco de piedra muy impresionante.
The old bridge has a very impressive stone arch.
El arco iris apareció después de la lluvia.
The rainbow appeared after the rain.
Dibuja un arco con el compás.
Draw an arc with the compass.
Gender Check
Remember that 'arco' is masculine, so you always use 'el' or 'un' before it, as in 'el arco' or 'un arco'.
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