noun.
A dreamlike musing or fantasy while awake, especially of the fulfillment of wishes or hopes.
intransitive verb.
To have dreamlike musings or fantasies while awake.
The Century Dictionary and Cyclopedia
noun.
A reverie; a castle in the air; a visionary fancy, especially of wishes gratified or hopes fulfilled, indulged in when awake; an extravagant conceit of the fancy or imagination.
the GNU version of the Collaborative International Dictionary of English
noun.
A vain fancy speculation; a reverie; a castle in the air; unfounded hope.