ilusionarse
verbCEFR B1
What does “ilusionarse” mean in English?
to get excited about / to get one's hopes up
to get excited about / to get one's hopes up (ilusionarse con algo; reflexive; implies hopeful anticipation with implicit risk of disappointment; false friend: ilusión ≠ illusion)
Example sentences
No te ilusiones demasiado antes de conocerle en persona, porque las conversaciones por mensaje no siempre reflejan cómo es alguien de verdad.
Don't get your hopes up too much before meeting him in person, because message conversations don't always reflect what someone is really like.
Se ilusionó con la idea de hacer un viaje juntos este verano, pero cuando empezaron a planificarlo se dieron cuenta de que sus agendas no encajaban.
She got excited about the idea of going on a trip together this summer, but when they started planning it they realised their schedules didn't match.
Me hace mucha ilusión que vengas a verme — llevamos meses sin vernos y tengo muchas ganas de ponernos al día.
I am really excited that you are coming to see me — it has been months since we saw each other and I really want to catch up.
How to use it
Ilusionarse means 'to get excited about / to get one's hopes up about' — it describes the experiencer feeling hopeful and enthusiastic about a future prospect. The critical false-cognate trap: ilusión does NOT mean 'illusion' in Spanish. Una ilusión means a hope, a dream, an excitement; estar ilusionado means 'to be excited / full of hope'. The reflexive marker se is obligatory. The preposition con introduces the source of excitement: ilusionarse con algo / con alguien. The verb also implies potential vulnerability — getting ilusionado carries a hint of risk that the hope may not materialise.
Common mistake
Ilusión / ilusionarse is a classic false friend. 'Una ilusión' in Spanish = a hope, a dream, excitement. It does NOT mean an illusion (that is 'una ilusión óptica' only in the visual/perceptual sense). 'Estoy muy ilusionado' = I am very excited / I have high hopes — NOT 'I am deluded'.