A long thin window is commonly referred to as a "transom window." Transom windows are typically placed above doors or larger windows and are used to allow light and air to flow into a space while maintaining privacy. They can be fixed or operable and are often decorative elements in architecture.
Mullion
A long thin mark is called a "line."
ROD!
A long thin scarf is typically called a "scarf" or a "skinny scarf".
Neck or fretboard
Neck or fretboard
Because they were ships? Do you mean longships? They were long and thin.
The long thin light bulb is called a fluorescent tube or a fluorescent light bulb. It is commonly used in commercial buildings, offices, and schools for general lighting purposes.
Thin neckwear is typically called a tie or a necktie. It is a long piece of cloth worn around the neck, usually with formal or business attire.
A window pane of clear glass. Clear cellophane or acrylic sheeting. Very thin ice. The list is long....
Origins Norwegian Word Ski
cloth is made up of thin long structures called fibers