While both "convenient" and "suitable" describe something fitting a particular purpose, they emphasize different aspects. "Convenient" focuses on ease and practicality; something convenient is easy to do or use. "Suitable," on the other hand, highlights appropriateness or fitness for a specific purpose or situation. Something suitable might not be the easiest option, but it's the most appropriate one.

Let's look at some examples:

• Convenient: "The bus stop is convenient for me." (This means the bus stop is easy to get to.) Translation: The bus stop is easy to reach for me.

• Suitable: "This dress is suitable for a wedding." (This means the dress is appropriate for a wedding, regardless of how easy it is to wear or obtain.) Translation: This dress is appropriate for a wedding.

• Convenient: "Online banking is very convenient." (This means online banking is easy and simple to use.) Translation: Online banking is very easy and simple to use.

• Suitable: "He's suitable for the job." (This means he possesses the qualities needed for the job, not necessarily that the job is easy for him.) Translation: He has the necessary skills and qualities for the job.

• Convenient: "A nearby grocery store is very convenient." (This means that it's easy to get groceries from this store.) Translation: A nearby grocery store is very easy to use.

• Suitable: "This venue is suitable for our party." (This means the venue is appropriate for the party, not necessarily the easiest venue to access or book.) Translation: This venue is appropriate for our party.

Notice that something can be both convenient and suitable, but often, they don't overlap perfectly. A convenient option is generally easy to use, while a suitable option is the best or most appropriate choice. Understanding this nuance will improve your English fluency.

Happy learning!