The word 'letter' has taken on several meanings over time, all of which are quite different.|
The English usage has been affected by the French 'lettre' in old usage, which expanded its meaning.
Letter- individual element of an alphabet.
Letter- Written message in the form of a personal letter.
Letter of the law- Literal interpretation of law.
Letter of marque- Official authorization to conduct acts of piracy
Examples of Letter:
The Greek Letter A was derived from the shape of formations of birds.|
A letter was received from the claimant demanding action be taken.
The strict letter of the law would not be appropriate in this case.
A letter of marque was an old form of recruiting naval mercenaries.
A famous letter from Albert Einstein and Leo Szilárd to U.S. President Franklin Roosevelt suggesting an atomic bomb project.