v. |
[1] |
tighten down/up
,
fasten
,
anchor
,
fasten
,
fix
,
tense
,
secure
|
[2] |
make tighter/tenser/stronger
,
strengthen
|
[3] |
tighten up
,
stiffen
,
tighten up
,
make more rigorous/strict/stringent/severe/restrictive
,
close gaps in
,
constrain
|
[4] |
reduce
,
tighten up
,
tauten
,
stiffen
,
tense
,
close
|
|