digraph.
digraph.
a
tt makes t t.
The symbols for elements have either one or two letters. If there are two letters, the first one is capitalized and the second one is not.
Two letters/sounds that are combined to produce one sound.
Two plus eleven = thirteen.
tire has two syllables and you can rearrange the letters to make rite a one syllable word.
eye
loner
There are up to 3 numbers and up to 5 letters in a UK postcode. One or two letters, followed by one or two digits OR one digit and a letter, followed by a space, followed by one digit, followed by two letters.
The symbol that always represents either one or two letters is the chemical symbol. Each element on the periodic table is represented by a unique chemical symbol, typically consisting of one or two letters.
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