To trade or barter.
To replace with, as a substitute.
To recommend and get recommendations.
The transfer of substances or elements like gas, amino-acids, ions etc. sometimes through a surface like a membrane.
The fourth through sixth digits of a ten-digit phone number (the first three before the introduction of area codes).
The loss of a minor piece (typically a bishop or knight) and associated capture of the more advantageous rook.
A telephone exchange.
A conversation.
An act of exchanging or trading.
The difference between the values of money in different places.
A place for conducting trading.
The loss of one piece and associated capture of another.
To have habitually in stock for sale.
To supply with necessities and financially support (a person).
To refrain from freely disclosing (a secret).
To continue in (a course or mode of action); to not intermit or fall from; to uphold or maintain.
To remain edible or otherwise usable.
To remain in a state.
To observe; to adhere to; to fulfill; to not swerve from or violate.
To raise; to care for.
To act as wicket-keeper.
To enter (accounts, records, etc.) in a book.
To maintain the condition of; to preserve in a certain state.
To restrain.
To maintain (an establishment or institution); to conduct; to manage.
To watch over, look after, guard, protect.
To maintain possession of.
To record transactions, accounts, or events in.
To remain faithful to a given promise or word.
To continue.
The state of being kept; hence, the resulting condition; case.
A cap for holding something, such as a journal box, in place.
The food or money required to keep someone alive and healthy; one's support, maintenance.
The main tower of a castle or fortress, located within the castle walls.