The two main devices (symbols) in the Aberberdour blazon are the bars and sword. The two main tinctures (colors) are gules and argent.
Red in heraldry is given the name Gules, sometimes said to be the “martyr’s colour”1The Symbolisms of Heraldry, W. Cecil Wade, George Redway, London, 1898 P36. The colour is also associated with Mars, the red planet, and the zodiacal sign Aries 2Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53. Later heralds of a more poetical nature would sometimes refer to the colour as ruby, after the precious stone.3A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P77.
Argent is the heraldic metal Silver and is usually shown as very pure white. It is also known more poetically as pearl, moon (or luna) 4Understanding Signs & Symbols – Heraldry, S. Oliver & G. Croton, Quantum, London, 2013, P53. In a sketch or drawing it is represented by plain, unmarked paper 5A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1847, P11.
The bar is a thin, horizontal stripe across the centre of the shield 6A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Bar, usually in groups of two or three (any more and there would be confusion with barry, a treatment of horizontal lines of alternating colours). Bars can be a distinctive and easily recognised device, early examples include those awarded by Henry III of England to the family MAUDYT Argent, two bars gules.
Given the martial nature of the origins of Heraldry, in the identification of knights and men-at-arms it can come as no surprise that mediaeval weaponry of all types are frequently to be found in a coat of arms 7Boutell’s Heraldry, J.P. Brooke-Little, Warne, (revised Edition) London 1970, P 89. Indeed, the sheer variety of different swords 8A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1847, P302 can be bewildering and expaining the difference between a scimitar and a falchion is perhaps best left to the expert! If a charge is described just as a simple sword then it will have a straight blade and cross handle, that may be of a different colour, and, unless specified, points upwards. Wade, quoting the earlier writer Guillim, signifies the use of the sword as representing “Government and Justice”.