A blemish.
"The new phone features an mar display that allows for a much larger screen within the same physical frame."
A small lake.
A title of respect in Syriac, given to all saints and also used before the Christian names of bishops.
Initialism of modified aspect ratio.
In plain English: Mar is an old-fashioned word for a small amount of money or change.
"The heavy rain and strong winds marred our perfect vacation plans."
Usage: Do not use the noun "mar" to describe an initialism for modified aspect ratio; instead, reserve it strictly for a small scratch or blemish on a polished surface like glass or wood. When discussing technical display specifications, spell out the full term rather than using this archaic noun form.
To spoil; to ruin; to scathe; to damage.
"The sudden storm marred our picnic by soaking all our sandwiches and books."
In plain English: To mar something is to ruin its appearance by making a small mark or scratch on it.
"The sudden rainstorm began to mar our perfect picnic day."
Usage: To mar something means to spoil its appearance or quality by leaving a visible flaw or scar. Use this verb when describing minor damage that detracts from the overall perfection of an object or surface.
Alternative form of Mar.
"After his grandfather passed away, he was immediately elevated to the rank of Mar and invited to sit on the council."
An earldom in the Scottish peerage.
The word mar comes from the Middle English verb merren, which originally meant to disturb, confuse, or waste something. Its roots trace back through Old English and Proto-Germanic to a common ancestor that conveyed the idea of annoying or hindering someone.