Based on Research by TBI Model Systems. 1  Your vision is important for many aspects of life. 2  Traumatic brain injury (TBI) can cause problems with your vision.  Treatment can either fix the problem completely, improve your vision, or help you better manage the problem.
Grammar. 1  InitialsAn initial is the first letter of a word. We often use initials to refer to the names of countries and organisations: â¦. 2  AcronymsAcronyms are words which are formed from the first letters of other words, and which are pronounced as full words. Examples of acronyms: â¦. 3  Abbreviations, initials and acronyms â¦.
An abbreviation (from Latin brevis sho â¦ rt) is a shorter form of a word. More particularly, an abbreviation is a letter or group of letters, taken from a word or words, and employed to represent them for the sake of. For example, the word abbreviation can be abbreviated as abbr. or abbrev..n abbreviation is a shortened form often followed by a period. A contraction follows a spoken form of a word pair by omitting one or m â¦ ore letters (e.g. you've, he's, won't).