The term catch weed refers to a type of weed that is notorious for catching onto clothing and passing animals, often spreading its seeds far and wide. Some synonyms for catch weed include sticky weed, bur weed, cleavers, and sticky bud. Sticky weed is a common synonym due to the plant's adhesive properties, which allow the seeds to stick to almost anything they come into contact with. Bur weed is another term that is often used, particularly in areas where the plant has a significant impact on agriculture. Cleavers and sticky bud are two alternative synonyms that are less commonly used but still accurately describe the plant's sticky nature.