The convention for punctuation of abbreviations (which is not rigidly observed) is:
- last letter of word and abbreviation same: no full stop (eg: Ltd)
- last letter of word and abbreviation not same: full stop (eg: Co.)
| a/c | account |
| a.m. | before noon (ante meridiem) |
| a.s.a.p. | as soon as possible |
| cc: | copies to |
| c/o | care of |
| Co. | Company |
| e.g. | for example (exemplii gratia) |
| enc. | enclosed |
| exc. | excluding |
| f.o.b. | free on board |
| G.M.T. | Greenwich Mean Time |
| HQ | headquarters |
| i.e. | that is (id est) |
| inc. | including |
| Inc. | Incorporated |
| Ltd | Limited |
| Mr | Mr (pronounced Mister) |
| Mrs | Mrs (pronounced Missiz) |
| Miss | Miss |
| Ms | Ms (pronounced Miz) |
| no. | number |
| p.a. | per annum |
| P.L.C. | Public Limited Company |
| p.m. | after noon (post meridiem) |
| p.t.o. | please turn over |
| Rd | Road |
| re | referring to |
| St | Saint |
| St. | Street |
| v.a.t. | value added tax |