凝

to congeal / to concentrate attention / to stare

"ice" radical in Chinese characters (Kangxi radical 15), occurring in 冰[bing1], 次[ci4] etc, known as 兩點水|两点水[liang3 dian3 shui3]

to doubt / to suspect

concrete

to gaze at / to fix one's eyes on

to freeze / to solidify / to congeal / fig. with rapt attention

to condense / to coagulate / coacervation (i.e. form tiny droplets) / aggregation / coherent

to condense / to solidify / to coagulate / clot (of blood)

to gaze at / to stare fixedly at

cohesion / cohesiveness / cohesive

with rapt attention

dignified / grave (expression) / imposing (attitude) / heavy (atmosphere) / (music etc) deep and resounding

to concentrate / to gather / (biology) to agglutinate

thrombin (biochemistry)