adjective - very thin and skinny
phrase - latin word for 'in'
adjective - that cannot be delivered to the receiver, usually because of an incorrect address or other problem
noun - the act of collecting something
noun - a company or system that takes goods, packages, or letters to the person or place they are meant for
noun - the process of watching and recording the progress, movement, or changes of something over time
noun - a person who walks along beaches looking for interesting or valuable things that the sea has washed up