grok
verb /ɡrɒk/
  /ɡrɑːk/
(US English, informal)Verb Forms
| present simple I / you / we / they grok |  /ɡrɒk/  /ɡrɑːk/ | 
| he / she / it groks |  /ɡrɒks/  /ɡrɑːks/ | 
| past simple grokked |  /ɡrɒkt/  /ɡrɑːkt/ | 
| past participle grokked |  /ɡrɒkt/  /ɡrɑːkt/ | 
| -ing form grokking |  /ˈɡrɒkɪŋ/  /ˈɡrɑːkɪŋ/ | 
- grok something to understand something completely using your feelings rather than considering the facts- Kids grok this show immediately but their parents take longer to get it.
 Word Origin1960s: a word invented by Robert Heinlein (1907–88), American author.