| Subject | English | Finnish |
| phys.sc. | alcalinity of ash | tuhkan emäksisyys |
| agric. | alkalinity of the ash | tuhkan alkalisuus |
| agric. | alkalinity of the insoluble ash | liukenemattoman tuhkan alkalisuus |
| agric. | alkalinity of the soluble ash | liukenevan tuhkan alkalisuus |
| agric. | American ash | valkosaarni (Fraxinus americana) |
| nat.sc., agric. | ash bark beetle | pikkusaarnenniluri (Hylesinus fraxini, Leperisinus fraxini) |
| industr., construct. | ash bowl | pesuallas |
| nat.sc., agric. | ash bud moth | saarnikoi (Prays fraxinella) |
| environ. | ash cesspit | tuhkapesä |
| agric. | ash content | tuhkapitoisuus |
| nat.sc., agric. | ash disease | tupakanhärmäsieni |
| nat.sc., agric. | ash disease | tupakanhärmä |
| environ., el. | ash disposal installation | tuhkanpoistin |
| environ., el. | ash disposal installation | kuonanpoistin |
| earth.sc. | ash fall | tuhkasade |
| agric. | Ash farming | kaskiviljely |
| agric. | Ash farming | kaskiviljelys |
| agric. | Ash farming | kaskeaminen |
| earth.sc. | ash flow | tuhkavirta |
| nat.sc., agric. | ash leaf maple | saarnivaahtera (Acer negundo) |
| nat.sc., agric. | ash-leaved maple | saarnivaahtera (Acer negundo) |
| environ. | ash pond | tuhka-allas |
| earth.sc., mech.eng. | ash pump | tuhkapumppu |
| agric. | ash pumpkin | vahakurpitsa (Benincasa cerifera, Benincasa hispida) |
| earth.sc., mech.eng. | ash sluice pump | tuhkapumppu |
| coal., met. | ash softening point | pehmenemispiste |
| chem. | ashing crucible | hehkutusupokas |
| nat.sc., agric. | black ash | mustasaarni (Fraxinus nigra) |
| industr. | bottom ash | pohjatukka |
| industr. | bottom ash | kuona |
| nat.sc., agric. | brown ash | mustasaarni (Fraxinus nigra) |
| construct. | cementitious fly ash | lentotuhka |
| construct. | class C fly ash | lentotuhka |
| forestr. | common ash | metsäsaarni (Fraxinus excelsior) |
| forestr. | common ash | lehtosaarni (Fraxinus excelsior) |
| forestr. | common ash | saarni (Fraxinus excelsior) |
| chem. | conductivity ash | johtokykyinen tuhka |
| chem. | crude ash | raakatuhka |
| agric., food.ind. | crude ash | hehkutusjäännös |
| industr., construct., chem. | dense ash | raskassooda |
| coal., met. | dry,ash free | vedetön ja tuhkaton |
| forestr. | European ash | metsäsaarni (Fraxinus excelsior) |
| forestr. | European ash | saarni (Fraxinus excelsior) |
| forestr. | European ash | lehtosaarni (Fraxinus excelsior) |
| nat.sc., agric. | flowering ash | mannasaarni (Fraxinus ornus) |
| environ. | fly ash Finely divided particles of ash that are entrained in flue gases resulting from the combustion of fuel or other material. The particles of ash may contain incompletely burned fuel and other pollutants | lentotuhka |
| environ., industr. | fly ash | lentotuhka |
| environ. | glass ash | lasituhka |
| industr., construct., chem. | granular ash | raskassooda |
| nat.sc., agric. | green ash | punasaarni (Fraxinus pennsylvanica) |
| industr., construct., chem. | heavy ash | raskassooda |
| nucl.phys. | helium ash | heliumtuhka |
| nat.sc., agric. | Japanese ash | mant¦uriansaarni (Fraxinus mandshurica) |
| industr., construct., chem. | light ash | kalsinoitu sooda |
| industr., construct., chem. | light ash | natriumkarbonaatti |
| nat.sc., agric. | manna ash | mannasaarni (Fraxinus ornus) |
| agric., chem. | milk ash | maidon tuhka |
| nat.sc., agric. | mountain ash | kotipihlaja (Sorbus aucuparia) |
| agric. | mountain ash berry | pihlajanmarja |
| life.sc. | oakleaf mountain ash | härkäpihlaja (Sorbus hybrida) |
| life.sc. | oakleaf mountain ash | suomenpihlaja (Sorbus hybrida) |
| chem., met., mech.eng. | pearl ash rare | kaliumkarbonaatti |
| chem., met., mech.eng. | pearl ash rare | potaska |
| forestr. | percentage of ash | tuhkaprosentti |
| environ., el. | plant used for ash disposal | kuonanpoistin |
| environ., el. | plant used for ash disposal | tuhkanpoistin |
| industr. | Portland-fly ash cement | portlandlentotuhkasementti |
| nat.sc., agric. | red ash | punasaarni (Fraxinus pennsylvanica) |
| chem. | residual ash | residuaalituhka |
| chem. | residual ash | jäännöstuhka |
| food.ind. | soda ash | natriumkarbonaatti |
| food.ind. | soda ash | sooda |
| chem. | soda ash | kalsinoitu sooda |
| chem., met. | sulphated ash | sulfatoitu tuhka |
| chem. | sulphated ash | sulfaattituhka |
| chem. | total ash | kokonaistuhka |
| earth.sc. | volcanic ash | vulkaaninen tuhka |
| earth.sc. | volcanic ash | tulivuoren tuhka |
| transp., avia. | volcanic ash advisory centre | vulkaanisen tuhkan tiedotuskeskus |
| transp., avia. | volcanic ash cloud | vulkaaninen tuhkapilvi |
| agric. | white ash | valkosaarni (Fraxinus americana) |
| agric. | wood ashes | puutuhka |