1) Herb 2) Herbaceous plant 1) Marjoram 2) Oregano 
Origanum is a genus of herbaceous perennials and subshrubs in the family Lamiaceae, native to Europe, North Africa, and much of temperate Asia, where they are found in open or mountainous habitats. A few species also naturalized in scattered locations in North America and other regions. The plants have strongly aromatic leaves and abundant tubular...
• (n.) A genus of aromatic labiate plants, including the sweet marjoram (O. Marjorana) and the wild marjoram (O. vulgare).
This group consists of 15 to 20 species of annual, perennial, and shrubby herbs, which are commonly used in tomato-based sauces for pizza and pasta. They are natives of Africa and southern Europe. These fragrant, sprawling plants look lovely when grown in window boxes and containers as long as they are trimmed periodically. Their tiny flowers ...
[n] - any of various fragrant aromatic herbs of the genus Origanum used as seasonings
noun any of various fragrant aromatic herbs of the genus Origanum used as seasonings