I.on [美 ɑn, ɔn, 英 ɒn]介词on often appears as the second element of certain verb structures in English (count on, lay on, sign on, etc). For translations, see the relevant verb entry (count, lay, sign, etc).
The vociferous ones keep on hiding behind their titles spewing vitriol and nonsense, trying by every imaginable joggle, to justify their unjustifiable sarcasm with confusing verbosity.