Cruck is a term that is commonly associated with the construction of timber-framed houses. The word is derived from the Old Norse word 'krokr' meaning 'hook'. It refers to a curved timber that is used to form the structure of a building. If you are looking for synonyms for the word 'cruck', you may consider using terms like 'crook', 'hook', 'cant', or 'canted'. These are all terms that describe the same type of curved timber that forms the basis of timber-framed construction. Other related terms may include 'rafter', 'tie-beam', or 'purlin', all of which are essential components of timber-framed buildings.