Blade and Pruning hook

Blade noun - A hand weapon with a length of metal sharpened on one or both sides and usually tapered to a sharp point.

Pruning hook and blade are semantically related. In some cases you can use "Pruning hook" instead a noun "Blade".

Pruning hook noun - A long-handled pruning saw with a curved blade at the end and sometimes a clipper; used to prune small trees.

Blade and pruning hook are semantically related. Sometimes you can use "Blade" instead a noun phrase "Pruning hook".