Dictionary

1. (

• speed ,
• swiftness ,
• fastness

) a rate (usually rapid) at which something happens; "the project advanced with gratifying speed" ;

2. (

• fastness ,
• fixedness ,
• fixity ,
• fixture ,
• secureness

) the quality of being fixed in place as by some firm attachment ;

3. (

• stronghold ,
• fastness

) a strongly fortified defensive structure ;