Pythagorean numbers

(of the way in which a moving thing stops) without warning / (of the way in which a moving thing stops) as if something has gone dead / (of the way in which a moving thing stops) with a halt / (of the way in which a moving thing stops) suddenly / (of the way in which a moving thing stops) all of a sudden

(of the way in which something clings onto something else) firmly / (of the way in which something clings onto something else) closely / (of the way in which something clings onto something else) securely Cmt:

exactly / to a T

exactly / closely / tightly

on the square / properly / finely

tight / close

be in perfect accord with / neatly-balanced

come to a dead stop / stop suddenly / stop short / come to a standstill / break off

fit closely / fit exactly