sub

1. n. A subordinate; a subaltern. Source: opted

2. n. a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States Source: wordnet

3. n. a submersible warship usually armed with torpedoes Source: wordnet

4. v. be a substitute Source: wordnet

5. A subordinate; a subaltern. [Colloq.] Source: webster

6. v:9/n:91 n a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States n a submersible warship usually armed with torpedoes v be a substitute Source: ecdict

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