obstacle / impediment / hindrance / difficulty / barrier
104083
case / situation
104830
quick / fast / rapid / swift / prompt / streamlined / expedited / expeditious
109507
cause / origin / source
76054
investigation (esp. in academic and scientific contexts)
67075
restoration / restitution / rehabilitation
149928
cooperation / collaboration
68427
urgent / pressing / emergency
70046
observation / guarding / inspection / surveillance
62028
attitude / conditions / preparations
122627
week
98661
furthermore / again / after all / more and more / moreover
81621
phone
34014
quantity / amount / volume / number / amount of money
83007
function / facility / faculty / feature
64333
something carried (in the hand) / handheld
72769
telephone
133310
task / business
163410
system
20114
whole / all / general / gross
119433
inspection / examination / checking
132694
fruit / nut
94500
motion / change / confusion
135770
force / unit / corps / echelon / element
149466
altitude / height
83280
action of making something / -ification
53812
propulsion / driving force
109820
DoCoMo (NTT mobile phone service)
28022
week
98661
urgent / pressing / emergency
70046
observation / guarding / inspection / surveillance
62028
maintenance / servicing / outfitting
111744
system
20114
obstacle / impediment / hindrance / difficulty / barrier
104083
restoration / restitution / rehabilitation
149928
attitude / conditions / preparations
122627
strengthen / intensify / reinforce / solidify / enhancement
68508