ho ho /ˈhoʊ/

interjection

1. () Exclamation of joy, surprise, triumph, suspicion, etc  ( ha , ho , hah )
   exclamation of joy, surprise, triumph, suspicion, etc
   

 Ho

noun

1. A trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds  ( atomic number 67 , Ho , holmium )
   a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds