1. (noun) a person who unfastens or unwraps or opens

• undoer
• unfastener
• untier

1. (noun) a hand tool used for opening sealed containers (bottles or cans)

• bottle opener
• can opener
• tin opener
• latchstring

1. (noun) the first event in a series

• start

2. (noun) a person who unfastens or unwraps or opens

• individual
• mortal
• person
• somebody
• someone
• soul

3. (noun) a hand tool used for opening sealed containers (bottles or cans)

• hand tool

1. (noun) the first event in a series

• open

2. (noun) a person who unfastens or unwraps or opens

• loosen
• loosen
• undo
• undo
• untie
• untie
• open
• open up
• unbrace
• unlace
• untie
• undo
• unwrap
• unfasten

3. (noun) a hand tool used for opening sealed containers (bottles or cans)

• open
• open up