twin
twin
UK[twɪn]US[twɪn]
n
One of two children or animals born at the same birth
n
One of two things that are exactly the same or very similar
adj
Used to describe two things that form a pair or are very similar
Etymology
The word 'twin' originates from the Old English 'getwinn' or 'twinn', meaning 'double' or 'twofold'. This Old English term is derived from the Proto-Germanic 'twisnjaz', which is built on the root 'twī-', meaning 'two'. This root is a direct descendant of the Proto-Indo-European 'dwo-', the fundamental root for the number two. The semantic journey is direct and logical: from the ancient concept of 'two-ness', the word evolved specifically to denote two offspring born together, and later expanded to describe any two closely matched or identical things.
Analysis
The word 'twin' is a simplex word of Germanic origin. It functions as a complete lexical unit.
Examples
She is the older of the twins.
The two countries are often described as twin nations due to their shared history.
The plan involves building twin towers on the site.